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Finding the Fourth Proportional to 540.14, 741.81 and 452.66

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Solution

The fourth proportional to 540.14, 741.81 and 452.66 is: 621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.14 : 741.81 = 452.66 : x
  2. Step 2: Convert to fraction form
    540.14/741.81 = 452.66/x
  3. Step 3: Cross multiply
    540.14x = 741.81 × 452.66
  4. Step 4: Simplify right side
    540.14x = 335,785.45
  5. Step 5: Solve for x
    x = 335,785.45/540.14
  6. Step 6: Final answer
    x = 621.66

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.