Home / 281,836.70-422,279.58-139,492.16

Finding the Fourth Proportional to 281,836.70, 422,279.58 and 139,492.16

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Solution

The fourth proportional to 281,836.70, 422,279.58 and 139,492.16 is: 209,002.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,836.70 : 422,279.58 = 139,492.16 : x
  2. Step 2: Convert to fraction form
    281,836.70/422,279.58 = 139,492.16/x
  3. Step 3: Cross multiply
    281,836.70x = 422,279.58 × 139,492.16
  4. Step 4: Simplify right side
    281,836.70x = 58,904,690,738.09
  5. Step 5: Solve for x
    x = 58,904,690,738.09/281,836.70
  6. Step 6: Final answer
    x = 209,002.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.