Home / 311,876.32-430,388.66-175,909.84

Finding the Fourth Proportional to 311,876.32, 430,388.66 and 175,909.84

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Solution

The fourth proportional to 311,876.32, 430,388.66 and 175,909.84 is: 242,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,876.32 : 430,388.66 = 175,909.84 : x
  2. Step 2: Convert to fraction form
    311,876.32/430,388.66 = 175,909.84/x
  3. Step 3: Cross multiply
    311,876.32x = 430,388.66 × 175,909.84
  4. Step 4: Simplify right side
    311,876.32x = 75,709,600,318.41
  5. Step 5: Solve for x
    x = 75,709,600,318.41/311,876.32
  6. Step 6: Final answer
    x = 242,755.21

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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.