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Finding the Fourth Proportional to 409.98, 614.84 and 273.77

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Solution

The fourth proportional to 409.98, 614.84 and 273.77 is: 410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.98 : 614.84 = 273.77 : x
  2. Step 2: Convert to fraction form
    409.98/614.84 = 273.77/x
  3. Step 3: Cross multiply
    409.98x = 614.84 × 273.77
  4. Step 4: Simplify right side
    409.98x = 168,320.30
  5. Step 5: Solve for x
    x = 168,320.30/409.98
  6. Step 6: Final answer
    x = 410.56

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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.