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Finding the Fourth Proportional to 549.66, 758.04 and 328.50

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Solution

The fourth proportional to 549.66, 758.04 and 328.50 is: 453.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.66 : 758.04 = 328.50 : x
  2. Step 2: Convert to fraction form
    549.66/758.04 = 328.50/x
  3. Step 3: Cross multiply
    549.66x = 758.04 × 328.50
  4. Step 4: Simplify right side
    549.66x = 249,016.14
  5. Step 5: Solve for x
    x = 249,016.14/549.66
  6. Step 6: Final answer
    x = 453.04

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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.