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Finding the Fourth Proportional to 189.03, 259.73 and 150.15

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Solution

The fourth proportional to 189.03, 259.73 and 150.15 is: 206.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.03 : 259.73 = 150.15 : x
  2. Step 2: Convert to fraction form
    189.03/259.73 = 150.15/x
  3. Step 3: Cross multiply
    189.03x = 259.73 × 150.15
  4. Step 4: Simplify right side
    189.03x = 38,998.83
  5. Step 5: Solve for x
    x = 38,998.83/189.03
  6. Step 6: Final answer
    x = 206.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.