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Finding the Fourth Proportional to 646.52, 969.94 and 372.11

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Solution

The fourth proportional to 646.52, 969.94 and 372.11 is: 558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.52 : 969.94 = 372.11 : x
  2. Step 2: Convert to fraction form
    646.52/969.94 = 372.11/x
  3. Step 3: Cross multiply
    646.52x = 969.94 × 372.11
  4. Step 4: Simplify right side
    646.52x = 360,925.44
  5. Step 5: Solve for x
    x = 360,925.44/646.52
  6. Step 6: Final answer
    x = 558.26

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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.