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Finding the Fourth Proportional to 195.16, 292.60 and 87.04

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Solution

The fourth proportional to 195.16, 292.60 and 87.04 is: 130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.16 : 292.60 = 87.04 : x
  2. Step 2: Convert to fraction form
    195.16/292.60 = 87.04/x
  3. Step 3: Cross multiply
    195.16x = 292.60 × 87.04
  4. Step 4: Simplify right side
    195.16x = 25,467.90
  5. Step 5: Solve for x
    x = 25,467.90/195.16
  6. Step 6: Final answer
    x = 130.50

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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.