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Finding the Fourth Proportional to 485,323.30, 727,984.95 and 169,747.30

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Solution

The fourth proportional to 485,323.30, 727,984.95 and 169,747.30 is: 254,620.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,323.30 : 727,984.95 = 169,747.30 : x
  2. Step 2: Convert to fraction form
    485,323.30/727,984.95 = 169,747.30/x
  3. Step 3: Cross multiply
    485,323.30x = 727,984.95 × 169,747.30
  4. Step 4: Simplify right side
    485,323.30x = 123,573,479,703.14
  5. Step 5: Solve for x
    x = 123,573,479,703.14/485,323.30
  6. Step 6: Final answer
    x = 254,620.95

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Similar ratio
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1.5x scale

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.