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Finding the Fourth Proportional to 199.98, 275.95 and 147.55

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Solution

The fourth proportional to 199.98, 275.95 and 147.55 is: 203.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.98 : 275.95 = 147.55 : x
  2. Step 2: Convert to fraction form
    199.98/275.95 = 147.55/x
  3. Step 3: Cross multiply
    199.98x = 275.95 × 147.55
  4. Step 4: Simplify right side
    199.98x = 40,717.48
  5. Step 5: Solve for x
    x = 40,717.48/199.98
  6. Step 6: Final answer
    x = 203.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.