Home / 291,380.20-436,811.10-172,925.80

Finding the Fourth Proportional to 291,380.20, 436,811.10 and 172,925.80

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Solution

The fourth proportional to 291,380.20, 436,811.10 and 172,925.80 is: 259,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,380.20 : 436,811.10 = 172,925.80 : x
  2. Step 2: Convert to fraction form
    291,380.20/436,811.10 = 172,925.80/x
  3. Step 3: Cross multiply
    291,380.20x = 436,811.10 × 172,925.80
  4. Step 4: Simplify right side
    291,380.20x = 75,535,908,916.38
  5. Step 5: Solve for x
    x = 75,535,908,916.38/291,380.20
  6. Step 6: Final answer
    x = 259,234.87

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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.