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Finding the Fourth Proportional to 485,440.10, 728,484.06 and 169,897.04

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Solution

The fourth proportional to 485,440.10, 728,484.06 and 169,897.04 is: 254,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,440.10 : 728,484.06 = 169,897.04 : x
  2. Step 2: Convert to fraction form
    485,440.10/728,484.06 = 169,897.04/x
  3. Step 3: Cross multiply
    485,440.10x = 728,484.06 × 169,897.04
  4. Step 4: Simplify right side
    485,440.10x = 123,767,285,481.18
  5. Step 5: Solve for x
    x = 123,767,285,481.18/485,440.10
  6. Step 6: Final answer
    x = 254,958.92

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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.