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Finding the Fourth Proportional to 310.56, 425.82 and 304.08

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Solution

The fourth proportional to 310.56, 425.82 and 304.08 is: 416.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.56 : 425.82 = 304.08 : x
  2. Step 2: Convert to fraction form
    310.56/425.82 = 304.08/x
  3. Step 3: Cross multiply
    310.56x = 425.82 × 304.08
  4. Step 4: Simplify right side
    310.56x = 129,483.35
  5. Step 5: Solve for x
    x = 129,483.35/310.56
  6. Step 6: Final answer
    x = 416.94

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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.