Home / 226,290.12-312,236.18-129,523.58

Finding the Fourth Proportional to 226,290.12, 312,236.18 and 129,523.58

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Solution

The fourth proportional to 226,290.12, 312,236.18 and 129,523.58 is: 178,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,290.12 : 312,236.18 = 129,523.58 : x
  2. Step 2: Convert to fraction form
    226,290.12/312,236.18 = 129,523.58/x
  3. Step 3: Cross multiply
    226,290.12x = 312,236.18 × 129,523.58
  4. Step 4: Simplify right side
    226,290.12x = 40,441,945,630.33
  5. Step 5: Solve for x
    x = 40,441,945,630.33/226,290.12
  6. Step 6: Final answer
    x = 178,717.24

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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.