Home / 658,143.23-987,214.85-159,507.23

Finding the Fourth Proportional to 658,143.23, 987,214.85 and 159,507.23

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Solution

The fourth proportional to 658,143.23, 987,214.85 and 159,507.23 is: 239,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,143.23 : 987,214.85 = 159,507.23 : x
  2. Step 2: Convert to fraction form
    658,143.23/987,214.85 = 159,507.23/x
  3. Step 3: Cross multiply
    658,143.23x = 987,214.85 × 159,507.23
  4. Step 4: Simplify right side
    658,143.23x = 157,467,906,138.37
  5. Step 5: Solve for x
    x = 157,467,906,138.37/658,143.23
  6. Step 6: Final answer
    x = 239,260.85

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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.