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Finding the Fourth Proportional to 353,649, 530,488.08 and 104,331

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Solution

The fourth proportional to 353,649, 530,488.08 and 104,331 is: 156,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,649 : 530,488.08 = 104,331 : x
  2. Step 2: Convert to fraction form
    353,649/530,488.08 = 104,331/x
  3. Step 3: Cross multiply
    353,649x = 530,488.08 × 104,331
  4. Step 4: Simplify right side
    353,649x = 55,346,351,874.48
  5. Step 5: Solve for x
    x = 55,346,351,874.48/353,649
  6. Step 6: Final answer
    x = 156,500.80

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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.