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Finding the Fourth Proportional to 488.93, 732.06 and 282.74

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Solution

The fourth proportional to 488.93, 732.06 and 282.74 is: 423.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.93 : 732.06 = 282.74 : x
  2. Step 2: Convert to fraction form
    488.93/732.06 = 282.74/x
  3. Step 3: Cross multiply
    488.93x = 732.06 × 282.74
  4. Step 4: Simplify right side
    488.93x = 206,978.98
  5. Step 5: Solve for x
    x = 206,978.98/488.93
  6. Step 6: Final answer
    x = 423.33

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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.