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Finding the Fourth Proportional to 224.04, 308.88 and 153.98

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Solution

The fourth proportional to 224.04, 308.88 and 153.98 is: 212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.04 : 308.88 = 153.98 : x
  2. Step 2: Convert to fraction form
    224.04/308.88 = 153.98/x
  3. Step 3: Cross multiply
    224.04x = 308.88 × 153.98
  4. Step 4: Simplify right side
    224.04x = 47,559.44
  5. Step 5: Solve for x
    x = 47,559.44/224.04
  6. Step 6: Final answer
    x = 212.28

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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.