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Finding the Fourth Proportional to 337,172.50, 505,758.75 and 87,854.50

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Solution

The fourth proportional to 337,172.50, 505,758.75 and 87,854.50 is: 131,781.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,172.50 : 505,758.75 = 87,854.50 : x
  2. Step 2: Convert to fraction form
    337,172.50/505,758.75 = 87,854.50/x
  3. Step 3: Cross multiply
    337,172.50x = 505,758.75 × 87,854.50
  4. Step 4: Simplify right side
    337,172.50x = 44,433,182,101.88
  5. Step 5: Solve for x
    x = 44,433,182,101.88/337,172.50
  6. Step 6: Final answer
    x = 131,781.75

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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.