Home / 457,240.20-685,860.30-207,922.20

Finding the Fourth Proportional to 457,240.20, 685,860.30 and 207,922.20

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Solution

The fourth proportional to 457,240.20, 685,860.30 and 207,922.20 is: 311,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,240.20 : 685,860.30 = 207,922.20 : x
  2. Step 2: Convert to fraction form
    457,240.20/685,860.30 = 207,922.20/x
  3. Step 3: Cross multiply
    457,240.20x = 685,860.30 × 207,922.20
  4. Step 4: Simplify right side
    457,240.20x = 142,605,582,468.66
  5. Step 5: Solve for x
    x = 142,605,582,468.66/457,240.20
  6. Step 6: Final answer
    x = 311,883.30

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Similar ratio
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1.5x scale

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.