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Finding the Fourth Proportional to 276,655.80, 414,983.70 and 248,662.20

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Solution

The fourth proportional to 276,655.80, 414,983.70 and 248,662.20 is: 372,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,655.80 : 414,983.70 = 248,662.20 : x
  2. Step 2: Convert to fraction form
    276,655.80/414,983.70 = 248,662.20/x
  3. Step 3: Cross multiply
    276,655.80x = 414,983.70 × 248,662.20
  4. Step 4: Simplify right side
    276,655.80x = 103,190,759,806.14
  5. Step 5: Solve for x
    x = 103,190,759,806.14/276,655.80
  6. Step 6: Final answer
    x = 372,993.30

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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.