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Finding the Fourth Proportional to 342,063.30, 512,220.15 and 252,833.70

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Solution

The fourth proportional to 342,063.30, 512,220.15 and 252,833.70 is: 378,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,063.30 : 512,220.15 = 252,833.70 : x
  2. Step 2: Convert to fraction form
    342,063.30/512,220.15 = 252,833.70/x
  3. Step 3: Cross multiply
    342,063.30x = 512,220.15 × 252,833.70
  4. Step 4: Simplify right side
    342,063.30x = 129,506,515,739.06
  5. Step 5: Solve for x
    x = 129,506,515,739.06/342,063.30
  6. Step 6: Final answer
    x = 378,603.95

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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.