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Finding the Fourth Proportional to 456.56, 683.76 and 273.77

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Solution

The fourth proportional to 456.56, 683.76 and 273.77 is: 410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.56 : 683.76 = 273.77 : x
  2. Step 2: Convert to fraction form
    456.56/683.76 = 273.77/x
  3. Step 3: Cross multiply
    456.56x = 683.76 × 273.77
  4. Step 4: Simplify right side
    456.56x = 187,192.98
  5. Step 5: Solve for x
    x = 187,192.98/456.56
  6. Step 6: Final answer
    x = 410.01

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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.