Home / 278,215.40-383,937.70-150,891.10

Finding the Fourth Proportional to 278,215.40, 383,937.70 and 150,891.10

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Solution

The fourth proportional to 278,215.40, 383,937.70 and 150,891.10 is: 208,229.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,215.40 : 383,937.70 = 150,891.10 : x
  2. Step 2: Convert to fraction form
    278,215.40/383,937.70 = 150,891.10/x
  3. Step 3: Cross multiply
    278,215.40x = 383,937.70 × 150,891.10
  4. Step 4: Simplify right side
    278,215.40x = 57,932,781,884.47
  5. Step 5: Solve for x
    x = 57,932,781,884.47/278,215.40
  6. Step 6: Final answer
    x = 208,229.96

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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.