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Finding the Fourth Proportional to 225,350.90, 310,987.92 and 123,374.66

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Solution

The fourth proportional to 225,350.90, 310,987.92 and 123,374.66 is: 170,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,350.90 : 310,987.92 = 123,374.66 : x
  2. Step 2: Convert to fraction form
    225,350.90/310,987.92 = 123,374.66/x
  3. Step 3: Cross multiply
    225,350.90x = 310,987.92 × 123,374.66
  4. Step 4: Simplify right side
    225,350.90x = 38,368,027,339.17
  5. Step 5: Solve for x
    x = 38,368,027,339.17/225,350.90
  6. Step 6: Final answer
    x = 170,259.04

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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.