Home / 262,432.10-393,686.55-84,908.90

Finding the Fourth Proportional to 262,432.10, 393,686.55 and 84,908.90

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Solution

The fourth proportional to 262,432.10, 393,686.55 and 84,908.90 is: 127,375.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,432.10 : 393,686.55 = 84,908.90 : x
  2. Step 2: Convert to fraction form
    262,432.10/393,686.55 = 84,908.90/x
  3. Step 3: Cross multiply
    262,432.10x = 393,686.55 × 84,908.90
  4. Step 4: Simplify right side
    262,432.10x = 33,427,491,905.30
  5. Step 5: Solve for x
    x = 33,427,491,905.30/262,432.10
  6. Step 6: Final answer
    x = 127,375.77

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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.