Home / 231,459.28-347,188.92-219,639.76

Finding the Fourth Proportional to 231,459.28, 347,188.92 and 219,639.76

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Solution

The fourth proportional to 231,459.28, 347,188.92 and 219,639.76 is: 329,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,459.28 : 347,188.92 = 219,639.76 : x
  2. Step 2: Convert to fraction form
    231,459.28/347,188.92 = 219,639.76/x
  3. Step 3: Cross multiply
    231,459.28x = 347,188.92 × 219,639.76
  4. Step 4: Simplify right side
    231,459.28x = 76,256,491,063.46
  5. Step 5: Solve for x
    x = 76,256,491,063.46/231,459.28
  6. Step 6: Final answer
    x = 329,459.64

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1.5x scale

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.