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Finding the Fourth Proportional to 485,517.38, 728,276.06 and 153,093.38

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Solution

The fourth proportional to 485,517.38, 728,276.06 and 153,093.38 is: 229,640.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,517.38 : 728,276.06 = 153,093.38 : x
  2. Step 2: Convert to fraction form
    485,517.38/728,276.06 = 153,093.38/x
  3. Step 3: Cross multiply
    485,517.38x = 728,276.06 × 153,093.38
  4. Step 4: Simplify right side
    485,517.38x = 111,494,243,598.48
  5. Step 5: Solve for x
    x = 111,494,243,598.48/485,517.38
  6. Step 6: Final answer
    x = 229,640.07

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Similar ratio
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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.