Home / 278,645.38-384,527.22-151,321.88

Finding the Fourth Proportional to 278,645.38, 384,527.22 and 151,321.88

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Solution

The fourth proportional to 278,645.38, 384,527.22 and 151,321.88 is: 208,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,645.38 : 384,527.22 = 151,321.88 : x
  2. Step 2: Convert to fraction form
    278,645.38/384,527.22 = 151,321.88/x
  3. Step 3: Cross multiply
    278,645.38x = 384,527.22 × 151,321.88
  4. Step 4: Simplify right side
    278,645.38x = 58,187,381,841.57
  5. Step 5: Solve for x
    x = 58,187,381,841.57/278,645.38
  6. Step 6: Final answer
    x = 208,822.35

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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.