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Finding the Fourth Proportional to 276,312.40, 414,468.60 and 98,825.20

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Solution

The fourth proportional to 276,312.40, 414,468.60 and 98,825.20 is: 148,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,312.40 : 414,468.60 = 98,825.20 : x
  2. Step 2: Convert to fraction form
    276,312.40/414,468.60 = 98,825.20/x
  3. Step 3: Cross multiply
    276,312.40x = 414,468.60 × 98,825.20
  4. Step 4: Simplify right side
    276,312.40x = 40,959,942,288.72
  5. Step 5: Solve for x
    x = 40,959,942,288.72/276,312.40
  6. Step 6: Final answer
    x = 148,237.80

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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.