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Finding the Fourth Proportional to 352.68, 528.64 and 124.52

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Solution

The fourth proportional to 352.68, 528.64 and 124.52 is: 186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.68 : 528.64 = 124.52 : x
  2. Step 2: Convert to fraction form
    352.68/528.64 = 124.52/x
  3. Step 3: Cross multiply
    352.68x = 528.64 × 124.52
  4. Step 4: Simplify right side
    352.68x = 65,826.25
  5. Step 5: Solve for x
    x = 65,826.25/352.68
  6. Step 6: Final answer
    x = 186.65

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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.