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Finding the Fourth Proportional to 249,403.67, 374,160.85 and 71,896.83

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Solution

The fourth proportional to 249,403.67, 374,160.85 and 71,896.83 is: 107,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,403.67 : 374,160.85 = 71,896.83 : x
  2. Step 2: Convert to fraction form
    249,403.67/374,160.85 = 71,896.83/x
  3. Step 3: Cross multiply
    249,403.67x = 374,160.85 × 71,896.83
  4. Step 4: Simplify right side
    249,403.67x = 26,900,979,025.11
  5. Step 5: Solve for x
    x = 26,900,979,025.11/249,403.67
  6. Step 6: Final answer
    x = 107,861.20

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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.