Home / 218,131.38-300,920.27-127,491.17

Finding the Fourth Proportional to 218,131.38, 300,920.27 and 127,491.17

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Solution

The fourth proportional to 218,131.38, 300,920.27 and 127,491.17 is: 175,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,131.38 : 300,920.27 = 127,491.17 : x
  2. Step 2: Convert to fraction form
    218,131.38/300,920.27 = 127,491.17/x
  3. Step 3: Cross multiply
    218,131.38x = 300,920.27 × 127,491.17
  4. Step 4: Simplify right side
    218,131.38x = 38,364,675,156.96
  5. Step 5: Solve for x
    x = 38,364,675,156.96/218,131.38
  6. Step 6: Final answer
    x = 175,878.75

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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.