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Finding the Fourth Proportional to 310.12, 464.49 and 268.45

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Solution

The fourth proportional to 310.12, 464.49 and 268.45 is: 402.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.12 : 464.49 = 268.45 : x
  2. Step 2: Convert to fraction form
    310.12/464.49 = 268.45/x
  3. Step 3: Cross multiply
    310.12x = 464.49 × 268.45
  4. Step 4: Simplify right side
    310.12x = 124,691.18
  5. Step 5: Solve for x
    x = 124,691.18/310.12
  6. Step 6: Final answer
    x = 402.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.