Home / 457,164.80-685,747.20-141,619.20

Finding the Fourth Proportional to 457,164.80, 685,747.20 and 141,619.20

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Solution

The fourth proportional to 457,164.80, 685,747.20 and 141,619.20 is: 212,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,164.80 : 685,747.20 = 141,619.20 : x
  2. Step 2: Convert to fraction form
    457,164.80/685,747.20 = 141,619.20/x
  3. Step 3: Cross multiply
    457,164.80x = 685,747.20 × 141,619.20
  4. Step 4: Simplify right side
    457,164.80x = 97,114,969,866.24
  5. Step 5: Solve for x
    x = 97,114,969,866.24/457,164.80
  6. Step 6: Final answer
    x = 212,428.80

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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.