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Finding the Fourth Proportional to 218,810.60, 328,226.70 and 113,834.60

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Solution

The fourth proportional to 218,810.60, 328,226.70 and 113,834.60 is: 170,757.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,810.60 : 328,226.70 = 113,834.60 : x
  2. Step 2: Convert to fraction form
    218,810.60/328,226.70 = 113,834.60/x
  3. Step 3: Cross multiply
    218,810.60x = 328,226.70 × 113,834.60
  4. Step 4: Simplify right side
    218,810.60x = 37,363,555,103.82
  5. Step 5: Solve for x
    x = 37,363,555,103.82/218,810.60
  6. Step 6: Final answer
    x = 170,757.52

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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.