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Finding the Fourth Proportional to 276,017.07, 414,025.07 and 86,491.95

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Solution

The fourth proportional to 276,017.07, 414,025.07 and 86,491.95 is: 129,737.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,017.07 : 414,025.07 = 86,491.95 : x
  2. Step 2: Convert to fraction form
    276,017.07/414,025.07 = 86,491.95/x
  3. Step 3: Cross multiply
    276,017.07x = 414,025.07 × 86,491.95
  4. Step 4: Simplify right side
    276,017.07x = 35,809,836,483.54
  5. Step 5: Solve for x
    x = 35,809,836,483.54/276,017.07
  6. Step 6: Final answer
    x = 129,737.76

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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.