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Finding the Fourth Proportional to 657,999.70, 986,999.55 and 159,363.70

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Solution

The fourth proportional to 657,999.70, 986,999.55 and 159,363.70 is: 239,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,999.70 : 986,999.55 = 159,363.70 : x
  2. Step 2: Convert to fraction form
    657,999.70/986,999.55 = 159,363.70/x
  3. Step 3: Cross multiply
    657,999.70x = 986,999.55 × 159,363.70
  4. Step 4: Simplify right side
    657,999.70x = 157,291,900,186.34
  5. Step 5: Solve for x
    x = 157,291,900,186.34/657,999.70
  6. Step 6: Final answer
    x = 239,045.55

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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.