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Finding the Fourth Proportional to 485,394.52, 728,419.83 and 169,854.16

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Solution

The fourth proportional to 485,394.52, 728,419.83 and 169,854.16 is: 254,896.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,394.52 : 728,419.83 = 169,854.16 : x
  2. Step 2: Convert to fraction form
    485,394.52/728,419.83 = 169,854.16/x
  3. Step 3: Cross multiply
    485,394.52x = 728,419.83 × 169,854.16
  4. Step 4: Simplify right side
    485,394.52x = 123,725,133,860.62
  5. Step 5: Solve for x
    x = 123,725,133,860.62/485,394.52
  6. Step 6: Final answer
    x = 254,896.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.