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Finding the Fourth Proportional to 369.89, 554.93 and 153.62

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Solution

The fourth proportional to 369.89, 554.93 and 153.62 is: 230.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.89 : 554.93 = 153.62 : x
  2. Step 2: Convert to fraction form
    369.89/554.93 = 153.62/x
  3. Step 3: Cross multiply
    369.89x = 554.93 × 153.62
  4. Step 4: Simplify right side
    369.89x = 85,244.80
  5. Step 5: Solve for x
    x = 85,244.80/369.89
  6. Step 6: Final answer
    x = 230.46

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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.