Home / 254,738.20-382,107.30-136,640.20

Finding the Fourth Proportional to 254,738.20, 382,107.30 and 136,640.20

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Solution

The fourth proportional to 254,738.20, 382,107.30 and 136,640.20 is: 204,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,738.20 : 382,107.30 = 136,640.20 : x
  2. Step 2: Convert to fraction form
    254,738.20/382,107.30 = 136,640.20/x
  3. Step 3: Cross multiply
    254,738.20x = 382,107.30 × 136,640.20
  4. Step 4: Simplify right side
    254,738.20x = 52,211,217,893.46
  5. Step 5: Solve for x
    x = 52,211,217,893.46/254,738.20
  6. Step 6: Final answer
    x = 204,960.30

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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.