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Finding the Fourth Proportional to 152.98, 229.36 and 55.44

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Solution

The fourth proportional to 152.98, 229.36 and 55.44 is: 83.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.98 : 229.36 = 55.44 : x
  2. Step 2: Convert to fraction form
    152.98/229.36 = 55.44/x
  3. Step 3: Cross multiply
    152.98x = 229.36 × 55.44
  4. Step 4: Simplify right side
    152.98x = 12,715.72
  5. Step 5: Solve for x
    x = 12,715.72/152.98
  6. Step 6: Final answer
    x = 83.12

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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.