Home / 316,519.10-436,796.37-173,279.15

Finding the Fourth Proportional to 316,519.10, 436,796.37 and 173,279.15

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Solution

The fourth proportional to 316,519.10, 436,796.37 and 173,279.15 is: 239,125.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,519.10 : 436,796.37 = 173,279.15 : x
  2. Step 2: Convert to fraction form
    316,519.10/436,796.37 = 173,279.15/x
  3. Step 3: Cross multiply
    316,519.10x = 436,796.37 × 173,279.15
  4. Step 4: Simplify right side
    316,519.10x = 75,687,703,716.69
  5. Step 5: Solve for x
    x = 75,687,703,716.69/316,519.10
  6. Step 6: Final answer
    x = 239,125.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.