Home / 286,311.38-395,126.10-158,995.17

Finding the Fourth Proportional to 286,311.38, 395,126.10 and 158,995.17

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Solution

The fourth proportional to 286,311.38, 395,126.10 and 158,995.17 is: 219,422.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,311.38 : 395,126.10 = 158,995.17 : x
  2. Step 2: Convert to fraction form
    286,311.38/395,126.10 = 158,995.17/x
  3. Step 3: Cross multiply
    286,311.38x = 395,126.10 × 158,995.17
  4. Step 4: Simplify right side
    286,311.38x = 62,823,141,440.94
  5. Step 5: Solve for x
    x = 62,823,141,440.94/286,311.38
  6. Step 6: Final answer
    x = 219,422.44

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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.