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Finding the Fourth Proportional to 658,086.72, 987,130.35 and 237,362.55

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Solution

The fourth proportional to 658,086.72, 987,130.35 and 237,362.55 is: 356,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,086.72 : 987,130.35 = 237,362.55 : x
  2. Step 2: Convert to fraction form
    658,086.72/987,130.35 = 237,362.55/x
  3. Step 3: Cross multiply
    658,086.72x = 987,130.35 × 237,362.55
  4. Step 4: Simplify right side
    658,086.72x = 234,307,777,058.39
  5. Step 5: Solve for x
    x = 234,307,777,058.39/658,086.72
  6. Step 6: Final answer
    x = 356,043.92

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.