Home / 291,490.20-436,976.10-173,035.80

Finding the Fourth Proportional to 291,490.20, 436,976.10 and 173,035.80

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Solution

The fourth proportional to 291,490.20, 436,976.10 and 173,035.80 is: 259,399.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,490.20 : 436,976.10 = 173,035.80 : x
  2. Step 2: Convert to fraction form
    291,490.20/436,976.10 = 173,035.80/x
  3. Step 3: Cross multiply
    291,490.20x = 436,976.10 × 173,035.80
  4. Step 4: Simplify right side
    291,490.20x = 75,612,509,044.38
  5. Step 5: Solve for x
    x = 75,612,509,044.38/291,490.20
  6. Step 6: Final answer
    x = 259,399.83

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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.