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Finding the Fourth Proportional to 361,214.80, 541,801.45 and 108,489.70

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Solution

The fourth proportional to 361,214.80, 541,801.45 and 108,489.70 is: 162,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,214.80 : 541,801.45 = 108,489.70 : x
  2. Step 2: Convert to fraction form
    361,214.80/541,801.45 = 108,489.70/x
  3. Step 3: Cross multiply
    361,214.80x = 541,801.45 × 108,489.70
  4. Step 4: Simplify right side
    361,214.80x = 58,779,876,770.07
  5. Step 5: Solve for x
    x = 58,779,876,770.07/361,214.80
  6. Step 6: Final answer
    x = 162,728.32

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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.