Home / 231,458.28-347,187.42-219,638.76

Finding the Fourth Proportional to 231,458.28, 347,187.42 and 219,638.76

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Solution

The fourth proportional to 231,458.28, 347,187.42 and 219,638.76 is: 329,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,458.28 : 347,187.42 = 219,638.76 : x
  2. Step 2: Convert to fraction form
    231,458.28/347,187.42 = 219,638.76/x
  3. Step 3: Cross multiply
    231,458.28x = 347,187.42 × 219,638.76
  4. Step 4: Simplify right side
    231,458.28x = 76,255,814,416.40
  5. Step 5: Solve for x
    x = 76,255,814,416.40/231,458.28
  6. Step 6: Final answer
    x = 329,458.14

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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.