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Finding the Fourth Proportional to 646.07, 969.36 and 235.25

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Solution

The fourth proportional to 646.07, 969.36 and 235.25 is: 352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.07 : 969.36 = 235.25 : x
  2. Step 2: Convert to fraction form
    646.07/969.36 = 235.25/x
  3. Step 3: Cross multiply
    646.07x = 969.36 × 235.25
  4. Step 4: Simplify right side
    646.07x = 228,037.09
  5. Step 5: Solve for x
    x = 228,037.09/646.07
  6. Step 6: Final answer
    x = 352.96

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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.