Home / 321,022.47-443,010.15-185,055.66

Finding the Fourth Proportional to 321,022.47, 443,010.15 and 185,055.66

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Solution

The fourth proportional to 321,022.47, 443,010.15 and 185,055.66 is: 255,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,022.47 : 443,010.15 = 185,055.66 : x
  2. Step 2: Convert to fraction form
    321,022.47/443,010.15 = 185,055.66/x
  3. Step 3: Cross multiply
    321,022.47x = 443,010.15 × 185,055.66
  4. Step 4: Simplify right side
    321,022.47x = 81,981,535,694.95
  5. Step 5: Solve for x
    x = 81,981,535,694.95/321,022.47
  6. Step 6: Final answer
    x = 255,376.32

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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.