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Finding the Fourth Proportional to 360.04, 540.08 and 113.42

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Solution

The fourth proportional to 360.04, 540.08 and 113.42 is: 170.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.04 : 540.08 = 113.42 : x
  2. Step 2: Convert to fraction form
    360.04/540.08 = 113.42/x
  3. Step 3: Cross multiply
    360.04x = 540.08 × 113.42
  4. Step 4: Simplify right side
    360.04x = 61,255.87
  5. Step 5: Solve for x
    x = 61,255.87/360.04
  6. Step 6: Final answer
    x = 170.14

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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.