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Finding the Fourth Proportional to 270.73, 373.59 and 154.28

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Solution

The fourth proportional to 270.73, 373.59 and 154.28 is: 212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.73 : 373.59 = 154.28 : x
  2. Step 2: Convert to fraction form
    270.73/373.59 = 154.28/x
  3. Step 3: Cross multiply
    270.73x = 373.59 × 154.28
  4. Step 4: Simplify right side
    270.73x = 57,637.47
  5. Step 5: Solve for x
    x = 57,637.47/270.73
  6. Step 6: Final answer
    x = 212.90

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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.