Home / 260,472.64-390,687.36-82,972.48

Finding the Fourth Proportional to 260,472.64, 390,687.36 and 82,972.48

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Solution

The fourth proportional to 260,472.64, 390,687.36 and 82,972.48 is: 124,451.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,472.64 : 390,687.36 = 82,972.48 : x
  2. Step 2: Convert to fraction form
    260,472.64/390,687.36 = 82,972.48/x
  3. Step 3: Cross multiply
    260,472.64x = 390,687.36 × 82,972.48
  4. Step 4: Simplify right side
    260,472.64x = 32,416,299,163.85
  5. Step 5: Solve for x
    x = 32,416,299,163.85/260,472.64
  6. Step 6: Final answer
    x = 124,451.84

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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.