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Finding the Fourth Proportional to 342,768.32, 514,299.32 and 132,553.88

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Solution

The fourth proportional to 342,768.32, 514,299.32 and 132,553.88 is: 198,887.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,768.32 : 514,299.32 = 132,553.88 : x
  2. Step 2: Convert to fraction form
    342,768.32/514,299.32 = 132,553.88/x
  3. Step 3: Cross multiply
    342,768.32x = 514,299.32 × 132,553.88
  4. Step 4: Simplify right side
    342,768.32x = 68,172,370,347.36
  5. Step 5: Solve for x
    x = 68,172,370,347.36/342,768.32
  6. Step 6: Final answer
    x = 198,887.61

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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.