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Finding the Fourth Proportional to 273,124.60, 409,686.90 and 76,132.60

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Solution

The fourth proportional to 273,124.60, 409,686.90 and 76,132.60 is: 114,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,124.60 : 409,686.90 = 76,132.60 : x
  2. Step 2: Convert to fraction form
    273,124.60/409,686.90 = 76,132.60/x
  3. Step 3: Cross multiply
    273,124.60x = 409,686.90 × 76,132.60
  4. Step 4: Simplify right side
    273,124.60x = 31,190,528,882.94
  5. Step 5: Solve for x
    x = 31,190,528,882.94/273,124.60
  6. Step 6: Final answer
    x = 114,198.90

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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.