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Finding the Fourth Proportional to 436,788.83, 655,183.68 and 137,295.57

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Solution

The fourth proportional to 436,788.83, 655,183.68 and 137,295.57 is: 205,943.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,788.83 : 655,183.68 = 137,295.57 : x
  2. Step 2: Convert to fraction form
    436,788.83/655,183.68 = 137,295.57/x
  3. Step 3: Cross multiply
    436,788.83x = 655,183.68 × 137,295.57
  4. Step 4: Simplify right side
    436,788.83x = 89,953,816,800.30
  5. Step 5: Solve for x
    x = 89,953,816,800.30/436,788.83
  6. Step 6: Final answer
    x = 205,943.49

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1.5x scale

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.