Home / 658,139.23-987,208.85-159,503.23

Finding the Fourth Proportional to 658,139.23, 987,208.85 and 159,503.23

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Solution

The fourth proportional to 658,139.23, 987,208.85 and 159,503.23 is: 239,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,139.23 : 987,208.85 = 159,503.23 : x
  2. Step 2: Convert to fraction form
    658,139.23/987,208.85 = 159,503.23/x
  3. Step 3: Cross multiply
    658,139.23x = 987,208.85 × 159,503.23
  4. Step 4: Simplify right side
    658,139.23x = 157,463,000,259.59
  5. Step 5: Solve for x
    x = 157,463,000,259.59/658,139.23
  6. Step 6: Final answer
    x = 239,254.85

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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.