Home / 231,432.80-347,732.40-147,233.30

Finding the Fourth Proportional to 231,432.80, 347,732.40 and 147,233.30

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Solution

The fourth proportional to 231,432.80, 347,732.40 and 147,233.30 is: 221,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,432.80 : 347,732.40 = 147,233.30 : x
  2. Step 2: Convert to fraction form
    231,432.80/347,732.40 = 147,233.30/x
  3. Step 3: Cross multiply
    231,432.80x = 347,732.40 × 147,233.30
  4. Step 4: Simplify right side
    231,432.80x = 51,197,788,768.92
  5. Step 5: Solve for x
    x = 51,197,788,768.92/231,432.80
  6. Step 6: Final answer
    x = 221,220.97

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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.