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Finding the Fourth Proportional to 373,531, 515,472.80 and 203,765.80

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Solution

The fourth proportional to 373,531, 515,472.80 and 203,765.80 is: 281,196.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,531 : 515,472.80 = 203,765.80 : x
  2. Step 2: Convert to fraction form
    373,531/515,472.80 = 203,765.80/x
  3. Step 3: Cross multiply
    373,531x = 515,472.80 × 203,765.80
  4. Step 4: Simplify right side
    373,531x = 105,035,727,470.24
  5. Step 5: Solve for x
    x = 105,035,727,470.24/373,531
  6. Step 6: Final answer
    x = 281,196.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.