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Finding the Fourth Proportional to 315,167.33, 434,951.47 and 179,213.93

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Solution

The fourth proportional to 315,167.33, 434,951.47 and 179,213.93 is: 247,326.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,167.33 : 434,951.47 = 179,213.93 : x
  2. Step 2: Convert to fraction form
    315,167.33/434,951.47 = 179,213.93/x
  3. Step 3: Cross multiply
    315,167.33x = 434,951.47 × 179,213.93
  4. Step 4: Simplify right side
    315,167.33x = 77,949,361,978.31
  5. Step 5: Solve for x
    x = 77,949,361,978.31/315,167.33
  6. Step 6: Final answer
    x = 247,326.91

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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.