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Finding the Fourth Proportional to 362.89, 500.78 and 197.10

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Solution

The fourth proportional to 362.89, 500.78 and 197.10 is: 271.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.89 : 500.78 = 197.10 : x
  2. Step 2: Convert to fraction form
    362.89/500.78 = 197.10/x
  3. Step 3: Cross multiply
    362.89x = 500.78 × 197.10
  4. Step 4: Simplify right side
    362.89x = 98,701.23
  5. Step 5: Solve for x
    x = 98,701.23/362.89
  6. Step 6: Final answer
    x = 271.99

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Why These Related Problems?

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