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Finding the Fourth Proportional to 270.14, 373.02 and 215.18

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Solution

The fourth proportional to 270.14, 373.02 and 215.18 is: 297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.14 : 373.02 = 215.18 : x
  2. Step 2: Convert to fraction form
    270.14/373.02 = 215.18/x
  3. Step 3: Cross multiply
    270.14x = 373.02 × 215.18
  4. Step 4: Simplify right side
    270.14x = 80,266.44
  5. Step 5: Solve for x
    x = 80,266.44/270.14
  6. Step 6: Final answer
    x = 297.13

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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.