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Finding the Fourth Proportional to 267.59, 369.23 and 157.05

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Solution

The fourth proportional to 267.59, 369.23 and 157.05 is: 216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.59 : 369.23 = 157.05 : x
  2. Step 2: Convert to fraction form
    267.59/369.23 = 157.05/x
  3. Step 3: Cross multiply
    267.59x = 369.23 × 157.05
  4. Step 4: Simplify right side
    267.59x = 57,986.79
  5. Step 5: Solve for x
    x = 57,986.79/267.59
  6. Step 6: Final answer
    x = 216.70

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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.