Home / 457,260.60-685,890.90-141,814.20

Finding the Fourth Proportional to 457,260.60, 685,890.90 and 141,814.20

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Solution

The fourth proportional to 457,260.60, 685,890.90 and 141,814.20 is: 212,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,260.60 : 685,890.90 = 141,814.20 : x
  2. Step 2: Convert to fraction form
    457,260.60/685,890.90 = 141,814.20/x
  3. Step 3: Cross multiply
    457,260.60x = 685,890.90 × 141,814.20
  4. Step 4: Simplify right side
    457,260.60x = 97,269,069,270.78
  5. Step 5: Solve for x
    x = 97,269,069,270.78/457,260.60
  6. Step 6: Final answer
    x = 212,721.30

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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.