Home / 311,657.18-430,081.07-175,691.22

Finding the Fourth Proportional to 311,657.18, 430,081.07 and 175,691.22

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Solution

The fourth proportional to 311,657.18, 430,081.07 and 175,691.22 is: 242,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,657.18 : 430,081.07 = 175,691.22 : x
  2. Step 2: Convert to fraction form
    311,657.18/430,081.07 = 175,691.22/x
  3. Step 3: Cross multiply
    311,657.18x = 430,081.07 × 175,691.22
  4. Step 4: Simplify right side
    311,657.18x = 75,561,468,006.88
  5. Step 5: Solve for x
    x = 75,561,468,006.88/311,657.18
  6. Step 6: Final answer
    x = 242,450.59

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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.