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Finding the Fourth Proportional to 150.23, 207.27 and 84.74

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Solution

The fourth proportional to 150.23, 207.27 and 84.74 is: 116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.23 : 207.27 = 84.74 : x
  2. Step 2: Convert to fraction form
    150.23/207.27 = 84.74/x
  3. Step 3: Cross multiply
    150.23x = 207.27 × 84.74
  4. Step 4: Simplify right side
    150.23x = 17,563.02
  5. Step 5: Solve for x
    x = 17,563.02/150.23
  6. Step 6: Final answer
    x = 116.91

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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.