Home / 278,335.46-384,102.86-157,474.28

Finding the Fourth Proportional to 278,335.46, 384,102.86 and 157,474.28

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Solution

The fourth proportional to 278,335.46, 384,102.86 and 157,474.28 is: 217,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,335.46 : 384,102.86 = 157,474.28 : x
  2. Step 2: Convert to fraction form
    278,335.46/384,102.86 = 157,474.28/x
  3. Step 3: Cross multiply
    278,335.46x = 384,102.86 × 157,474.28
  4. Step 4: Simplify right side
    278,335.46x = 60,486,321,324.44
  5. Step 5: Solve for x
    x = 60,486,321,324.44/278,335.46
  6. Step 6: Final answer
    x = 217,314.46

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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.