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Finding the Fourth Proportional to 230.89, 345.88 and 153.63

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Solution

The fourth proportional to 230.89, 345.88 and 153.63 is: 230.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.89 : 345.88 = 153.63 : x
  2. Step 2: Convert to fraction form
    230.89/345.88 = 153.63/x
  3. Step 3: Cross multiply
    230.89x = 345.88 × 153.63
  4. Step 4: Simplify right side
    230.89x = 53,137.54
  5. Step 5: Solve for x
    x = 53,137.54/230.89
  6. Step 6: Final answer
    x = 230.14

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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.