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Finding the Fourth Proportional to 200.52, 300.28 and 146.76

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Solution

The fourth proportional to 200.52, 300.28 and 146.76 is: 219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.52 : 300.28 = 146.76 : x
  2. Step 2: Convert to fraction form
    200.52/300.28 = 146.76/x
  3. Step 3: Cross multiply
    200.52x = 300.28 × 146.76
  4. Step 4: Simplify right side
    200.52x = 44,069.09
  5. Step 5: Solve for x
    x = 44,069.09/200.52
  6. Step 6: Final answer
    x = 219.77

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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.