Home / 336,711.40-505,047.26-126,331.56

Finding the Fourth Proportional to 336,711.40, 505,047.26 and 126,331.56

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Solution

The fourth proportional to 336,711.40, 505,047.26 and 126,331.56 is: 189,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,711.40 : 505,047.26 = 126,331.56 : x
  2. Step 2: Convert to fraction form
    336,711.40/505,047.26 = 126,331.56/x
  3. Step 3: Cross multiply
    336,711.40x = 505,047.26 × 126,331.56
  4. Step 4: Simplify right side
    336,711.40x = 63,803,408,229.53
  5. Step 5: Solve for x
    x = 63,803,408,229.53/336,711.40
  6. Step 6: Final answer
    x = 189,489.90

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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.