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Finding the Fourth Proportional to 276,015.54, 414,022.77 and 86,490.39

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Solution

The fourth proportional to 276,015.54, 414,022.77 and 86,490.39 is: 129,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,015.54 : 414,022.77 = 86,490.39 : x
  2. Step 2: Convert to fraction form
    276,015.54/414,022.77 = 86,490.39/x
  3. Step 3: Cross multiply
    276,015.54x = 414,022.77 × 86,490.39
  4. Step 4: Simplify right side
    276,015.54x = 35,808,990,846.18
  5. Step 5: Solve for x
    x = 35,808,990,846.18/276,015.54
  6. Step 6: Final answer
    x = 129,735.42

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1.5x scale

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.