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Finding the Fourth Proportional to 229,309.68, 316,445.23 and 127,332.61

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Solution

The fourth proportional to 229,309.68, 316,445.23 and 127,332.61 is: 175,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,309.68 : 316,445.23 = 127,332.61 : x
  2. Step 2: Convert to fraction form
    229,309.68/316,445.23 = 127,332.61/x
  3. Step 3: Cross multiply
    229,309.68x = 316,445.23 × 127,332.61
  4. Step 4: Simplify right side
    229,309.68x = 40,293,796,426.00
  5. Step 5: Solve for x
    x = 40,293,796,426.00/229,309.68
  6. Step 6: Final answer
    x = 175,717.81

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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.