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Finding the Fourth Proportional to 252,308.36, 378,397.98 and 74,773.88

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Solution

The fourth proportional to 252,308.36, 378,397.98 and 74,773.88 is: 112,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,308.36 : 378,397.98 = 74,773.88 : x
  2. Step 2: Convert to fraction form
    252,308.36/378,397.98 = 74,773.88/x
  3. Step 3: Cross multiply
    252,308.36x = 378,397.98 × 74,773.88
  4. Step 4: Simplify right side
    252,308.36x = 28,294,285,148.76
  5. Step 5: Solve for x
    x = 28,294,285,148.76/252,308.36
  6. Step 6: Final answer
    x = 112,141.69

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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.