Home / 276,766.98-381,975.12-155,932.20

Finding the Fourth Proportional to 276,766.98, 381,975.12 and 155,932.20

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Solution

The fourth proportional to 276,766.98, 381,975.12 and 155,932.20 is: 215,207.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,766.98 : 381,975.12 = 155,932.20 : x
  2. Step 2: Convert to fraction form
    276,766.98/381,975.12 = 155,932.20/x
  3. Step 3: Cross multiply
    276,766.98x = 381,975.12 × 155,932.20
  4. Step 4: Simplify right side
    276,766.98x = 59,562,220,806.86
  5. Step 5: Solve for x
    x = 59,562,220,806.86/276,766.98
  6. Step 6: Final answer
    x = 215,207.11

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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.