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Finding the Fourth Proportional to 65.00, 97.50 and 24.40

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Solution

The fourth proportional to 65.00, 97.50 and 24.40 is: 36.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.00 : 97.50 = 24.40 : x
  2. Step 2: Convert to fraction form
    65.00/97.50 = 24.40/x
  3. Step 3: Cross multiply
    65.00x = 97.50 × 24.40
  4. Step 4: Simplify right side
    65.00x = 2,379.21
  5. Step 5: Solve for x
    x = 2,379.21/65.00
  6. Step 6: Final answer
    x = 36.60

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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.