Home / 207,449.32-286,129.38-143,789.80

Finding the Fourth Proportional to 207,449.32, 286,129.38 and 143,789.80

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Solution

The fourth proportional to 207,449.32, 286,129.38 and 143,789.80 is: 198,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,449.32 : 286,129.38 = 143,789.80 : x
  2. Step 2: Convert to fraction form
    207,449.32/286,129.38 = 143,789.80/x
  3. Step 3: Cross multiply
    207,449.32x = 286,129.38 × 143,789.80
  4. Step 4: Simplify right side
    207,449.32x = 41,142,486,324.32
  5. Step 5: Solve for x
    x = 41,142,486,324.32/207,449.32
  6. Step 6: Final answer
    x = 198,325.48

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1.5x scale

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.