Home / 345,439.22-518,177.39-108,800.42

Finding the Fourth Proportional to 345,439.22, 518,177.39 and 108,800.42

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Solution

The fourth proportional to 345,439.22, 518,177.39 and 108,800.42 is: 163,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,439.22 : 518,177.39 = 108,800.42 : x
  2. Step 2: Convert to fraction form
    345,439.22/518,177.39 = 108,800.42/x
  3. Step 3: Cross multiply
    345,439.22x = 518,177.39 × 108,800.42
  4. Step 4: Simplify right side
    345,439.22x = 56,377,914,531.61
  5. Step 5: Solve for x
    x = 56,377,914,531.61/345,439.22
  6. Step 6: Final answer
    x = 163,206.47

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1.5x scale

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.