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Finding the Fourth Proportional to 549.24, 823.86 and 488.50

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Solution

The fourth proportional to 549.24, 823.86 and 488.50 is: 732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.24 : 823.86 = 488.50 : x
  2. Step 2: Convert to fraction form
    549.24/823.86 = 488.50/x
  3. Step 3: Cross multiply
    549.24x = 823.86 × 488.50
  4. Step 4: Simplify right side
    549.24x = 402,455.61
  5. Step 5: Solve for x
    x = 402,455.61/549.24
  6. Step 6: Final answer
    x = 732.75

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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.