Home / 255,200.11-382,800.17-68,206.75

Finding the Fourth Proportional to 255,200.11, 382,800.17 and 68,206.75

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Solution

The fourth proportional to 255,200.11, 382,800.17 and 68,206.75 is: 102,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,200.11 : 382,800.17 = 68,206.75 : x
  2. Step 2: Convert to fraction form
    255,200.11/382,800.17 = 68,206.75/x
  3. Step 3: Cross multiply
    255,200.11x = 382,800.17 × 68,206.75
  4. Step 4: Simplify right side
    255,200.11x = 26,109,555,495.15
  5. Step 5: Solve for x
    x = 26,109,555,495.15/255,200.11
  6. Step 6: Final answer
    x = 102,310.13

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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.