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Finding the Fourth Proportional to 549.98, 758.18 and 483.87

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Solution

The fourth proportional to 549.98, 758.18 and 483.87 is: 667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.98 : 758.18 = 483.87 : x
  2. Step 2: Convert to fraction form
    549.98/758.18 = 483.87/x
  3. Step 3: Cross multiply
    549.98x = 758.18 × 483.87
  4. Step 4: Simplify right side
    549.98x = 366,858.14
  5. Step 5: Solve for x
    x = 366,858.14/549.98
  6. Step 6: Final answer
    x = 667.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.