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Finding the Fourth Proportional to 369.80, 554.55 and 150.39

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Solution

The fourth proportional to 369.80, 554.55 and 150.39 is: 225.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.80 : 554.55 = 150.39 : x
  2. Step 2: Convert to fraction form
    369.80/554.55 = 150.39/x
  3. Step 3: Cross multiply
    369.80x = 554.55 × 150.39
  4. Step 4: Simplify right side
    369.80x = 83,398.21
  5. Step 5: Solve for x
    x = 83,398.21/369.80
  6. Step 6: Final answer
    x = 225.52

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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.