Home / 278,512.32-384,239.36-157,625.90

Finding the Fourth Proportional to 278,512.32, 384,239.36 and 157,625.90

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Solution

The fourth proportional to 278,512.32, 384,239.36 and 157,625.90 is: 217,462.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,512.32 : 384,239.36 = 157,625.90 : x
  2. Step 2: Convert to fraction form
    278,512.32/384,239.36 = 157,625.90/x
  3. Step 3: Cross multiply
    278,512.32x = 384,239.36 × 157,625.90
  4. Step 4: Simplify right side
    278,512.32x = 60,566,074,935.42
  5. Step 5: Solve for x
    x = 60,566,074,935.42/278,512.32
  6. Step 6: Final answer
    x = 217,462.82

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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.