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Finding the Fourth Proportional to 229,159.72, 343,614.64 and 79,387.48

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Solution

The fourth proportional to 229,159.72, 343,614.64 and 79,387.48 is: 119,037.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,159.72 : 343,614.64 = 79,387.48 : x
  2. Step 2: Convert to fraction form
    229,159.72/343,614.64 = 79,387.48/x
  3. Step 3: Cross multiply
    229,159.72x = 343,614.64 × 79,387.48
  4. Step 4: Simplify right side
    229,159.72x = 27,278,700,360.71
  5. Step 5: Solve for x
    x = 27,278,700,360.71/229,159.72
  6. Step 6: Final answer
    x = 119,037.94

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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.