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Finding the Fourth Proportional to 150.18, 207.04 and 100.36

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Solution

The fourth proportional to 150.18, 207.04 and 100.36 is: 138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.18 : 207.04 = 100.36 : x
  2. Step 2: Convert to fraction form
    150.18/207.04 = 100.36/x
  3. Step 3: Cross multiply
    150.18x = 207.04 × 100.36
  4. Step 4: Simplify right side
    150.18x = 20,778.53
  5. Step 5: Solve for x
    x = 20,778.53/150.18
  6. Step 6: Final answer
    x = 138.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.