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Finding the Fourth Proportional to 150.00, 207.06 and 91.00

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Solution

The fourth proportional to 150.00, 207.06 and 91.00 is: 125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.00 : 207.06 = 91.00 : x
  2. Step 2: Convert to fraction form
    150.00/207.06 = 91.00/x
  3. Step 3: Cross multiply
    150.00x = 207.06 × 91.00
  4. Step 4: Simplify right side
    150.00x = 18,841.80
  5. Step 5: Solve for x
    x = 18,841.80/150.00
  6. Step 6: Final answer
    x = 125.61

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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.