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Finding the Fourth Proportional to 341.95, 471.63 and 231.25

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Solution

The fourth proportional to 341.95, 471.63 and 231.25 is: 318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.95 : 471.63 = 231.25 : x
  2. Step 2: Convert to fraction form
    341.95/471.63 = 231.25/x
  3. Step 3: Cross multiply
    341.95x = 471.63 × 231.25
  4. Step 4: Simplify right side
    341.95x = 109,064.44
  5. Step 5: Solve for x
    x = 109,064.44/341.95
  6. Step 6: Final answer
    x = 318.95

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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.