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Finding the Fourth Proportional to 485,062.40, 727,420.80 and 169,529.60

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Solution

The fourth proportional to 485,062.40, 727,420.80 and 169,529.60 is: 254,234.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,062.40 : 727,420.80 = 169,529.60 : x
  2. Step 2: Convert to fraction form
    485,062.40/727,420.80 = 169,529.60/x
  3. Step 3: Cross multiply
    485,062.40x = 727,420.80 × 169,529.60
  4. Step 4: Simplify right side
    485,062.40x = 123,319,357,255.68
  5. Step 5: Solve for x
    x = 123,319,357,255.68/485,062.40
  6. Step 6: Final answer
    x = 254,234.01

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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.