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Finding the Fourth Proportional to 341.95, 472.52 and 279.75

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Solution

The fourth proportional to 341.95, 472.52 and 279.75 is: 386.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.95 : 472.52 = 279.75 : x
  2. Step 2: Convert to fraction form
    341.95/472.52 = 279.75/x
  3. Step 3: Cross multiply
    341.95x = 472.52 × 279.75
  4. Step 4: Simplify right side
    341.95x = 132,189.35
  5. Step 5: Solve for x
    x = 132,189.35/341.95
  6. Step 6: Final answer
    x = 386.58

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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.