Home / 282,342.78-389,521.91-161,419.10

Finding the Fourth Proportional to 282,342.78, 389,521.91 and 161,419.10

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Solution

The fourth proportional to 282,342.78, 389,521.91 and 161,419.10 is: 222,694.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,342.78 : 389,521.91 = 161,419.10 : x
  2. Step 2: Convert to fraction form
    282,342.78/389,521.91 = 161,419.10/x
  3. Step 3: Cross multiply
    282,342.78x = 389,521.91 × 161,419.10
  4. Step 4: Simplify right side
    282,342.78x = 62,876,273,387.78
  5. Step 5: Solve for x
    x = 62,876,273,387.78/282,342.78
  6. Step 6: Final answer
    x = 222,694.82

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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.