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Finding the Fourth Proportional to 442,937.22, 664,511.67 and 143,418.15

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Solution

The fourth proportional to 442,937.22, 664,511.67 and 143,418.15 is: 215,161.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,937.22 : 664,511.67 = 143,418.15 : x
  2. Step 2: Convert to fraction form
    442,937.22/664,511.67 = 143,418.15/x
  3. Step 3: Cross multiply
    442,937.22x = 664,511.67 × 143,418.15
  4. Step 4: Simplify right side
    442,937.22x = 95,303,034,364.81
  5. Step 5: Solve for x
    x = 95,303,034,364.81/442,937.22
  6. Step 6: Final answer
    x = 215,161.49

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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.