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Finding the Fourth Proportional to 205.00, 307.51 and 96.75

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Solution

The fourth proportional to 205.00, 307.51 and 96.75 is: 145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.00 : 307.51 = 96.75 : x
  2. Step 2: Convert to fraction form
    205.00/307.51 = 96.75/x
  3. Step 3: Cross multiply
    205.00x = 307.51 × 96.75
  4. Step 4: Simplify right side
    205.00x = 29,751.35
  5. Step 5: Solve for x
    x = 29,751.35/205.00
  6. Step 6: Final answer
    x = 145.13

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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.