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Finding the Fourth Proportional to 279.84, 387.04 and 250.72

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Solution

The fourth proportional to 279.84, 387.04 and 250.72 is: 346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279.84 : 387.04 = 250.72 : x
  2. Step 2: Convert to fraction form
    279.84/387.04 = 250.72/x
  3. Step 3: Cross multiply
    279.84x = 387.04 × 250.72
  4. Step 4: Simplify right side
    279.84x = 97,038.67
  5. Step 5: Solve for x
    x = 97,038.67/279.84
  6. Step 6: Final answer
    x = 346.76

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