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Finding the Fourth Proportional to 310.36, 462.14 and 306.92

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Solution

The fourth proportional to 310.36, 462.14 and 306.92 is: 457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.36 : 462.14 = 306.92 : x
  2. Step 2: Convert to fraction form
    310.36/462.14 = 306.92/x
  3. Step 3: Cross multiply
    310.36x = 462.14 × 306.92
  4. Step 4: Simplify right side
    310.36x = 141,840.01
  5. Step 5: Solve for x
    x = 141,840.01/310.36
  6. Step 6: Final answer
    x = 457.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.