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Finding the Fourth Proportional to 497,920.78, 746,790.05 and 133,187.10

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Solution

The fourth proportional to 497,920.78, 746,790.05 and 133,187.10 is: 199,756.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,920.78 : 746,790.05 = 133,187.10 : x
  2. Step 2: Convert to fraction form
    497,920.78/746,790.05 = 133,187.10/x
  3. Step 3: Cross multiply
    497,920.78x = 746,790.05 × 133,187.10
  4. Step 4: Simplify right side
    497,920.78x = 99,462,800,402.42
  5. Step 5: Solve for x
    x = 99,462,800,402.42/497,920.78
  6. Step 6: Final answer
    x = 199,756.27

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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.