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Finding the Fourth Proportional to 485,065.40, 727,425.30 and 169,532.60

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Solution

The fourth proportional to 485,065.40, 727,425.30 and 169,532.60 is: 254,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,065.40 : 727,425.30 = 169,532.60 : x
  2. Step 2: Convert to fraction form
    485,065.40/727,425.30 = 169,532.60/x
  3. Step 3: Cross multiply
    485,065.40x = 727,425.30 × 169,532.60
  4. Step 4: Simplify right side
    485,065.40x = 123,322,302,414.78
  5. Step 5: Solve for x
    x = 123,322,302,414.78/485,065.40
  6. Step 6: Final answer
    x = 254,238.51

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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.