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Finding the Fourth Proportional to 319,695.92, 441,148.92 and 176,446.72

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Solution

The fourth proportional to 319,695.92, 441,148.92 and 176,446.72 is: 243,479.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,695.92 : 441,148.92 = 176,446.72 : x
  2. Step 2: Convert to fraction form
    319,695.92/441,148.92 = 176,446.72/x
  3. Step 3: Cross multiply
    319,695.92x = 441,148.92 × 176,446.72
  4. Step 4: Simplify right side
    319,695.92x = 77,839,279,965.54
  5. Step 5: Solve for x
    x = 77,839,279,965.54/319,695.92
  6. Step 6: Final answer
    x = 243,479.12

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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.