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Finding the Fourth Proportional to 549.78, 758.83 and 373.03

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Solution

The fourth proportional to 549.78, 758.83 and 373.03 is: 514.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.78 : 758.83 = 373.03 : x
  2. Step 2: Convert to fraction form
    549.78/758.83 = 373.03/x
  3. Step 3: Cross multiply
    549.78x = 758.83 × 373.03
  4. Step 4: Simplify right side
    549.78x = 283,070.08
  5. Step 5: Solve for x
    x = 283,070.08/549.78
  6. Step 6: Final answer
    x = 514.88

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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.