Home / 278,315.44-384,049.92-157,467.76

Finding the Fourth Proportional to 278,315.44, 384,049.92 and 157,467.76

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Solution

The fourth proportional to 278,315.44, 384,049.92 and 157,467.76 is: 217,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,315.44 : 384,049.92 = 157,467.76 : x
  2. Step 2: Convert to fraction form
    278,315.44/384,049.92 = 157,467.76/x
  3. Step 3: Cross multiply
    278,315.44x = 384,049.92 × 157,467.76
  4. Step 4: Simplify right side
    278,315.44x = 60,475,480,630.58
  5. Step 5: Solve for x
    x = 60,475,480,630.58/278,315.44
  6. Step 6: Final answer
    x = 217,291.15

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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.