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Finding the Fourth Proportional to 646.26, 968.54 and 372.48

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Solution

The fourth proportional to 646.26, 968.54 and 372.48 is: 558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.26 : 968.54 = 372.48 : x
  2. Step 2: Convert to fraction form
    646.26/968.54 = 372.48/x
  3. Step 3: Cross multiply
    646.26x = 968.54 × 372.48
  4. Step 4: Simplify right side
    646.26x = 360,761.78
  5. Step 5: Solve for x
    x = 360,761.78/646.26
  6. Step 6: Final answer
    x = 558.23

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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.