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Finding the Fourth Proportional to 276,007.14, 380,847.15 and 155,125.98

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Solution

The fourth proportional to 276,007.14, 380,847.15 and 155,125.98 is: 214,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,007.14 : 380,847.15 = 155,125.98 : x
  2. Step 2: Convert to fraction form
    276,007.14/380,847.15 = 155,125.98/x
  3. Step 3: Cross multiply
    276,007.14x = 380,847.15 × 155,125.98
  4. Step 4: Simplify right side
    276,007.14x = 59,079,287,373.96
  5. Step 5: Solve for x
    x = 59,079,287,373.96/276,007.14
  6. Step 6: Final answer
    x = 214,049.85

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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.