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Finding the Fourth Proportional to 236,359.01, 326,174.90 and 128,929.04

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Solution

The fourth proportional to 236,359.01, 326,174.90 and 128,929.04 is: 177,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,359.01 : 326,174.90 = 128,929.04 : x
  2. Step 2: Convert to fraction form
    236,359.01/326,174.90 = 128,929.04/x
  3. Step 3: Cross multiply
    236,359.01x = 326,174.90 × 128,929.04
  4. Step 4: Simplify right side
    236,359.01x = 42,053,417,319.32
  5. Step 5: Solve for x
    x = 42,053,417,319.32/236,359.01
  6. Step 6: Final answer
    x = 177,921.78

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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.