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Finding the Fourth Proportional to 373,489.32, 515,422.28 and 203,729.52

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Solution

The fourth proportional to 373,489.32, 515,422.28 and 203,729.52 is: 281,150.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,489.32 : 515,422.28 = 203,729.52 : x
  2. Step 2: Convert to fraction form
    373,489.32/515,422.28 = 203,729.52/x
  3. Step 3: Cross multiply
    373,489.32x = 515,422.28 × 203,729.52
  4. Step 4: Simplify right side
    373,489.32x = 105,006,733,701.71
  5. Step 5: Solve for x
    x = 105,006,733,701.71/373,489.32
  6. Step 6: Final answer
    x = 281,150.57

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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.