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Finding the Fourth Proportional to 485,422.83, 728,276.27 and 248,930.91

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Solution

The fourth proportional to 485,422.83, 728,276.27 and 248,930.91 is: 373,469.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,422.83 : 728,276.27 = 248,930.91 : x
  2. Step 2: Convert to fraction form
    485,422.83/728,276.27 = 248,930.91/x
  3. Step 3: Cross multiply
    485,422.83x = 728,276.27 × 248,930.91
  4. Step 4: Simplify right side
    485,422.83x = 181,290,473,377.85
  5. Step 5: Solve for x
    x = 181,290,473,377.85/485,422.83
  6. Step 6: Final answer
    x = 373,469.19

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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.