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Finding the Fourth Proportional to 646.55, 969.98 and 184.34

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Solution

The fourth proportional to 646.55, 969.98 and 184.34 is: 276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.55 : 969.98 = 184.34 : x
  2. Step 2: Convert to fraction form
    646.55/969.98 = 184.34/x
  3. Step 3: Cross multiply
    646.55x = 969.98 × 184.34
  4. Step 4: Simplify right side
    646.55x = 178,804.56
  5. Step 5: Solve for x
    x = 178,804.56/646.55
  6. Step 6: Final answer
    x = 276.55

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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.