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Finding the Fourth Proportional to 200.84, 300.80 and 146.16

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Solution

The fourth proportional to 200.84, 300.80 and 146.16 is: 218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.84 : 300.80 = 146.16 : x
  2. Step 2: Convert to fraction form
    200.84/300.80 = 146.16/x
  3. Step 3: Cross multiply
    200.84x = 300.80 × 146.16
  4. Step 4: Simplify right side
    200.84x = 43,964.93
  5. Step 5: Solve for x
    x = 43,964.93/200.84
  6. Step 6: Final answer
    x = 218.91

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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.