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Finding the Fourth Proportional to 270.17, 373.01 and 207.89

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Solution

The fourth proportional to 270.17, 373.01 and 207.89 is: 287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.17 : 373.01 = 207.89 : x
  2. Step 2: Convert to fraction form
    270.17/373.01 = 207.89/x
  3. Step 3: Cross multiply
    270.17x = 373.01 × 207.89
  4. Step 4: Simplify right side
    270.17x = 77,544.71
  5. Step 5: Solve for x
    x = 77,544.71/270.17
  6. Step 6: Final answer
    x = 287.02

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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.