Home / 311,725.12-430,172.01-175,757.86

Finding the Fourth Proportional to 311,725.12, 430,172.01 and 175,757.86

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Solution

The fourth proportional to 311,725.12, 430,172.01 and 175,757.86 is: 242,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,725.12 : 430,172.01 = 175,757.86 : x
  2. Step 2: Convert to fraction form
    311,725.12/430,172.01 = 175,757.86/x
  3. Step 3: Cross multiply
    311,725.12x = 430,172.01 × 175,757.86
  4. Step 4: Simplify right side
    311,725.12x = 75,606,111,909.50
  5. Step 5: Solve for x
    x = 75,606,111,909.50/311,725.12
  6. Step 6: Final answer
    x = 242,540.97

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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.