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Finding the Fourth Proportional to 549.98, 759.02 and 328.93

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Solution

The fourth proportional to 549.98, 759.02 and 328.93 is: 453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.98 : 759.02 = 328.93 : x
  2. Step 2: Convert to fraction form
    549.98/759.02 = 328.93/x
  3. Step 3: Cross multiply
    549.98x = 759.02 × 328.93
  4. Step 4: Simplify right side
    549.98x = 249,664.45
  5. Step 5: Solve for x
    x = 249,664.45/549.98
  6. Step 6: Final answer
    x = 453.95

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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.