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Finding the Fourth Proportional to 224.55, 310.30 and 202.41

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Solution

The fourth proportional to 224.55, 310.30 and 202.41 is: 279.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.55 : 310.30 = 202.41 : x
  2. Step 2: Convert to fraction form
    224.55/310.30 = 202.41/x
  3. Step 3: Cross multiply
    224.55x = 310.30 × 202.41
  4. Step 4: Simplify right side
    224.55x = 62,807.32
  5. Step 5: Solve for x
    x = 62,807.32/224.55
  6. Step 6: Final answer
    x = 279.70

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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.