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Finding the Fourth Proportional to 442,185.60, 663,278.38 and 109,761.60

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Solution

The fourth proportional to 442,185.60, 663,278.38 and 109,761.60 is: 164,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,185.60 : 663,278.38 = 109,761.60 : x
  2. Step 2: Convert to fraction form
    442,185.60/663,278.38 = 109,761.60/x
  3. Step 3: Cross multiply
    442,185.60x = 663,278.38 × 109,761.60
  4. Step 4: Simplify right side
    442,185.60x = 72,802,496,234.21
  5. Step 5: Solve for x
    x = 72,802,496,234.21/442,185.60
  6. Step 6: Final answer
    x = 164,642.40

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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.