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Finding the Fourth Proportional to 203.52, 302.88 and 195.84

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Solution

The fourth proportional to 203.52, 302.88 and 195.84 is: 291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.52 : 302.88 = 195.84 : x
  2. Step 2: Convert to fraction form
    203.52/302.88 = 195.84/x
  3. Step 3: Cross multiply
    203.52x = 302.88 × 195.84
  4. Step 4: Simplify right side
    203.52x = 59,316.02
  5. Step 5: Solve for x
    x = 59,316.02/203.52
  6. Step 6: Final answer
    x = 291.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.