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Finding the Fourth Proportional to 231,739.98, 347,329.26 and 98,340

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Solution

The fourth proportional to 231,739.98, 347,329.26 and 98,340 is: 147,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,739.98 : 347,329.26 = 98,340 : x
  2. Step 2: Convert to fraction form
    231,739.98/347,329.26 = 98,340/x
  3. Step 3: Cross multiply
    231,739.98x = 347,329.26 × 98,340
  4. Step 4: Simplify right side
    231,739.98x = 34,156,359,428.40
  5. Step 5: Solve for x
    x = 34,156,359,428.40/231,739.98
  6. Step 6: Final answer
    x = 147,390.88

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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.