Home / 231,425.28-347,137.92-219,605.76

Finding the Fourth Proportional to 231,425.28, 347,137.92 and 219,605.76

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Solution

The fourth proportional to 231,425.28, 347,137.92 and 219,605.76 is: 329,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,425.28 : 347,137.92 = 219,605.76 : x
  2. Step 2: Convert to fraction form
    231,425.28/347,137.92 = 219,605.76/x
  3. Step 3: Cross multiply
    231,425.28x = 347,137.92 × 219,605.76
  4. Step 4: Simplify right side
    231,425.28x = 76,233,486,746.42
  5. Step 5: Solve for x
    x = 76,233,486,746.42/231,425.28
  6. Step 6: Final answer
    x = 329,408.64

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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.