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Finding the Fourth Proportional to 485,367.39, 728,379.14 and 169,827.03

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Solution

The fourth proportional to 485,367.39, 728,379.14 and 169,827.03 is: 254,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,367.39 : 728,379.14 = 169,827.03 : x
  2. Step 2: Convert to fraction form
    485,367.39/728,379.14 = 169,827.03/x
  3. Step 3: Cross multiply
    485,367.39x = 728,379.14 × 169,827.03
  4. Step 4: Simplify right side
    485,367.39x = 123,698,465,211.02
  5. Step 5: Solve for x
    x = 123,698,465,211.02/485,367.39
  6. Step 6: Final answer
    x = 254,855.33

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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.