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Finding the Fourth Proportional to 645.85, 968.63 and 183.52

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Solution

The fourth proportional to 645.85, 968.63 and 183.52 is: 275.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    645.85 : 968.63 = 183.52 : x
  2. Step 2: Convert to fraction form
    645.85/968.63 = 183.52/x
  3. Step 3: Cross multiply
    645.85x = 968.63 × 183.52
  4. Step 4: Simplify right side
    645.85x = 177,762.98
  5. Step 5: Solve for x
    x = 177,762.98/645.85
  6. Step 6: Final answer
    x = 275.24

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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.