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Finding the Fourth Proportional to 549.74, 758.76 and 328.74

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Solution

The fourth proportional to 549.74, 758.76 and 328.74 is: 453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.74 : 758.76 = 328.74 : x
  2. Step 2: Convert to fraction form
    549.74/758.76 = 328.74/x
  3. Step 3: Cross multiply
    549.74x = 758.76 × 328.74
  4. Step 4: Simplify right side
    549.74x = 249,434.76
  5. Step 5: Solve for x
    x = 249,434.76/549.74
  6. Step 6: Final answer
    x = 453.73

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