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Finding the Fourth Proportional to 276,006.30, 414,009.45 and 98,519.10

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Solution

The fourth proportional to 276,006.30, 414,009.45 and 98,519.10 is: 147,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,006.30 : 414,009.45 = 98,519.10 : x
  2. Step 2: Convert to fraction form
    276,006.30/414,009.45 = 98,519.10/x
  3. Step 3: Cross multiply
    276,006.30x = 414,009.45 × 98,519.10
  4. Step 4: Simplify right side
    276,006.30x = 40,787,838,405.50
  5. Step 5: Solve for x
    x = 40,787,838,405.50/276,006.30
  6. Step 6: Final answer
    x = 147,778.65

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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.