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Finding the Fourth Proportional to 267.04, 368.43 and 156.53

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Solution

The fourth proportional to 267.04, 368.43 and 156.53 is: 215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.04 : 368.43 = 156.53 : x
  2. Step 2: Convert to fraction form
    267.04/368.43 = 156.53/x
  3. Step 3: Cross multiply
    267.04x = 368.43 × 156.53
  4. Step 4: Simplify right side
    267.04x = 57,668.51
  5. Step 5: Solve for x
    x = 57,668.51/267.04
  6. Step 6: Final answer
    x = 215.95

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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.