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Finding the Fourth Proportional to 267.02, 368.24 and 156.45

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Solution

The fourth proportional to 267.02, 368.24 and 156.45 is: 215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.02 : 368.24 = 156.45 : x
  2. Step 2: Convert to fraction form
    267.02/368.24 = 156.45/x
  3. Step 3: Cross multiply
    267.02x = 368.24 × 156.45
  4. Step 4: Simplify right side
    267.02x = 57,611.15
  5. Step 5: Solve for x
    x = 57,611.15/267.02
  6. Step 6: Final answer
    x = 215.76

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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.