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Finding the Fourth Proportional to 485,566.92, 728,323.59 and 148,607.31

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Solution

The fourth proportional to 485,566.92, 728,323.59 and 148,607.31 is: 222,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,566.92 : 728,323.59 = 148,607.31 : x
  2. Step 2: Convert to fraction form
    485,566.92/728,323.59 = 148,607.31/x
  3. Step 3: Cross multiply
    485,566.92x = 728,323.59 × 148,607.31
  4. Step 4: Simplify right side
    485,566.92x = 108,234,209,519.44
  5. Step 5: Solve for x
    x = 108,234,209,519.44/485,566.92
  6. Step 6: Final answer
    x = 222,902.77

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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.