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Finding the Fourth Proportional to 97.38, 146.08 and 97.00

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Solution

The fourth proportional to 97.38, 146.08 and 97.00 is: 145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.38 : 146.08 = 97.00 : x
  2. Step 2: Convert to fraction form
    97.38/146.08 = 97.00/x
  3. Step 3: Cross multiply
    97.38x = 146.08 × 97.00
  4. Step 4: Simplify right side
    97.38x = 14,169.09
  5. Step 5: Solve for x
    x = 14,169.09/97.38
  6. Step 6: Final answer
    x = 145.50

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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.