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Finding the Fourth Proportional to 360.15, 540.12 and 100.08

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Solution

The fourth proportional to 360.15, 540.12 and 100.08 is: 150.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.15 : 540.12 = 100.08 : x
  2. Step 2: Convert to fraction form
    360.15/540.12 = 100.08/x
  3. Step 3: Cross multiply
    360.15x = 540.12 × 100.08
  4. Step 4: Simplify right side
    360.15x = 54,056.06
  5. Step 5: Solve for x
    x = 54,056.06/360.15
  6. Step 6: Final answer
    x = 150.09

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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.