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Finding the Fourth Proportional to 279.59, 384.35 and 250.16

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Solution

The fourth proportional to 279.59, 384.35 and 250.16 is: 343.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279.59 : 384.35 = 250.16 : x
  2. Step 2: Convert to fraction form
    279.59/384.35 = 250.16/x
  3. Step 3: Cross multiply
    279.59x = 384.35 × 250.16
  4. Step 4: Simplify right side
    279.59x = 96,145.82
  5. Step 5: Solve for x
    x = 96,145.82/279.59
  6. Step 6: Final answer
    x = 343.89

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.