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Finding the Fourth Proportional to 216,614.72, 324,948.96 and 76,345.28

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Solution

The fourth proportional to 216,614.72, 324,948.96 and 76,345.28 is: 114,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,614.72 : 324,948.96 = 76,345.28 : x
  2. Step 2: Convert to fraction form
    216,614.72/324,948.96 = 76,345.28/x
  3. Step 3: Cross multiply
    216,614.72x = 324,948.96 × 76,345.28
  4. Step 4: Simplify right side
    216,614.72x = 24,808,319,336.91
  5. Step 5: Solve for x
    x = 24,808,319,336.91/216,614.72
  6. Step 6: Final answer
    x = 114,527.39

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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.