Home / 439,247.64-658,418.94-172,900.20

Finding the Fourth Proportional to 439,247.64, 658,418.94 and 172,900.20

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Solution

The fourth proportional to 439,247.64, 658,418.94 and 172,900.20 is: 259,172.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,247.64 : 658,418.94 = 172,900.20 : x
  2. Step 2: Convert to fraction form
    439,247.64/658,418.94 = 172,900.20/x
  3. Step 3: Cross multiply
    439,247.64x = 658,418.94 × 172,900.20
  4. Step 4: Simplify right side
    439,247.64x = 113,840,766,409.79
  5. Step 5: Solve for x
    x = 113,840,766,409.79/439,247.64
  6. Step 6: Final answer
    x = 259,172.18

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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.