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Finding the Fourth Proportional to 485,394.02, 728,419.07 and 169,853.66

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Solution

The fourth proportional to 485,394.02, 728,419.07 and 169,853.66 is: 254,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,394.02 : 728,419.07 = 169,853.66 : x
  2. Step 2: Convert to fraction form
    485,394.02/728,419.07 = 169,853.66/x
  3. Step 3: Cross multiply
    485,394.02x = 728,419.07 × 169,853.66
  4. Step 4: Simplify right side
    485,394.02x = 123,724,641,835.84
  5. Step 5: Solve for x
    x = 123,724,641,835.84/485,394.02
  6. Step 6: Final answer
    x = 254,895.28

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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.