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Finding the Fourth Proportional to 503,650.58, 755,505.50 and 143,793.78

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Solution

The fourth proportional to 503,650.58, 755,505.50 and 143,793.78 is: 215,699.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,650.58 : 755,505.50 = 143,793.78 : x
  2. Step 2: Convert to fraction form
    503,650.58/755,505.50 = 143,793.78/x
  3. Step 3: Cross multiply
    503,650.58x = 755,505.50 × 143,793.78
  4. Step 4: Simplify right side
    503,650.58x = 108,636,991,655.79
  5. Step 5: Solve for x
    x = 108,636,991,655.79/503,650.58
  6. Step 6: Final answer
    x = 215,699.13

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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.