Home / 280,345.14-386,862.83-159,475.11

Finding the Fourth Proportional to 280,345.14, 386,862.83 and 159,475.11

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Solution

The fourth proportional to 280,345.14, 386,862.83 and 159,475.11 is: 220,067.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,345.14 : 386,862.83 = 159,475.11 : x
  2. Step 2: Convert to fraction form
    280,345.14/386,862.83 = 159,475.11/x
  3. Step 3: Cross multiply
    280,345.14x = 386,862.83 × 159,475.11
  4. Step 4: Simplify right side
    280,345.14x = 61,694,992,369.16
  5. Step 5: Solve for x
    x = 61,694,992,369.16/280,345.14
  6. Step 6: Final answer
    x = 220,067.99

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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.