Home / 457,315.20-685,998.72-141,816.96

Finding the Fourth Proportional to 457,315.20, 685,998.72 and 141,816.96

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Solution

The fourth proportional to 457,315.20, 685,998.72 and 141,816.96 is: 212,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,315.20 : 685,998.72 = 141,816.96 : x
  2. Step 2: Convert to fraction form
    457,315.20/685,998.72 = 141,816.96/x
  3. Step 3: Cross multiply
    457,315.20x = 685,998.72 × 141,816.96
  4. Step 4: Simplify right side
    457,315.20x = 97,286,253,034.29
  5. Step 5: Solve for x
    x = 97,286,253,034.29/457,315.20
  6. Step 6: Final answer
    x = 212,733.48

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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.