Home / 276,587.25-381,658.85-155,725.42

Finding the Fourth Proportional to 276,587.25, 381,658.85 and 155,725.42

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Solution

The fourth proportional to 276,587.25, 381,658.85 and 155,725.42 is: 214,883.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,587.25 : 381,658.85 = 155,725.42 : x
  2. Step 2: Convert to fraction form
    276,587.25/381,658.85 = 155,725.42/x
  3. Step 3: Cross multiply
    276,587.25x = 381,658.85 × 155,725.42
  4. Step 4: Simplify right side
    276,587.25x = 59,433,984,712.97
  5. Step 5: Solve for x
    x = 59,433,984,712.97/276,587.25
  6. Step 6: Final answer
    x = 214,883.31

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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.