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Finding the Fourth Proportional to 275,724.80, 413,635.80 and 98,334.80

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Solution

The fourth proportional to 275,724.80, 413,635.80 and 98,334.80 is: 147,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,724.80 : 413,635.80 = 98,334.80 : x
  2. Step 2: Convert to fraction form
    275,724.80/413,635.80 = 98,334.80/x
  3. Step 3: Cross multiply
    275,724.80x = 413,635.80 × 98,334.80
  4. Step 4: Simplify right side
    275,724.80x = 40,674,793,665.84
  5. Step 5: Solve for x
    x = 40,674,793,665.84/275,724.80
  6. Step 6: Final answer
    x = 147,519.53

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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.