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Finding the Fourth Proportional to 150.08, 208.19 and 137.93

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Solution

The fourth proportional to 150.08, 208.19 and 137.93 is: 191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.08 : 208.19 = 137.93 : x
  2. Step 2: Convert to fraction form
    150.08/208.19 = 137.93/x
  3. Step 3: Cross multiply
    150.08x = 208.19 × 137.93
  4. Step 4: Simplify right side
    150.08x = 28,714.95
  5. Step 5: Solve for x
    x = 28,714.95/150.08
  6. Step 6: Final answer
    x = 191.34

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.