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Finding the Fourth Proportional to 352.08, 526.32 and 259.92

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Solution

The fourth proportional to 352.08, 526.32 and 259.92 is: 388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.08 : 526.32 = 259.92 : x
  2. Step 2: Convert to fraction form
    352.08/526.32 = 259.92/x
  3. Step 3: Cross multiply
    352.08x = 526.32 × 259.92
  4. Step 4: Simplify right side
    352.08x = 136,801.09
  5. Step 5: Solve for x
    x = 136,801.09/352.08
  6. Step 6: Final answer
    x = 388.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.