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Finding the Fourth Proportional to 658,138.22, 987,207.35 and 159,502.22

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Solution

The fourth proportional to 658,138.22, 987,207.35 and 159,502.22 is: 239,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,138.22 : 987,207.35 = 159,502.22 : x
  2. Step 2: Convert to fraction form
    658,138.22/987,207.35 = 159,502.22/x
  3. Step 3: Cross multiply
    658,138.22x = 987,207.35 × 159,502.22
  4. Step 4: Simplify right side
    658,138.22x = 157,461,765,595.82
  5. Step 5: Solve for x
    x = 157,461,765,595.82/658,138.22
  6. Step 6: Final answer
    x = 239,253.34

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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.