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Finding the Fourth Proportional to 276,700.20, 414,977.40 and 87,160.20

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Solution

The fourth proportional to 276,700.20, 414,977.40 and 87,160.20 is: 130,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,700.20 : 414,977.40 = 87,160.20 : x
  2. Step 2: Convert to fraction form
    276,700.20/414,977.40 = 87,160.20/x
  3. Step 3: Cross multiply
    276,700.20x = 414,977.40 × 87,160.20
  4. Step 4: Simplify right side
    276,700.20x = 36,169,513,179.48
  5. Step 5: Solve for x
    x = 36,169,513,179.48/276,700.20
  6. Step 6: Final answer
    x = 130,717.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.