Home / 276,184.66-381,131.20-155,325.90

Finding the Fourth Proportional to 276,184.66, 381,131.20 and 155,325.90

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Solution

The fourth proportional to 276,184.66, 381,131.20 and 155,325.90 is: 214,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,184.66 : 381,131.20 = 155,325.90 : x
  2. Step 2: Convert to fraction form
    276,184.66/381,131.20 = 155,325.90/x
  3. Step 3: Cross multiply
    276,184.66x = 381,131.20 × 155,325.90
  4. Step 4: Simplify right side
    276,184.66x = 59,199,546,658.08
  5. Step 5: Solve for x
    x = 59,199,546,658.08/276,184.66
  6. Step 6: Final answer
    x = 214,347.70

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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.