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Finding the Fourth Proportional to 300.52, 448.61 and 277.66

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Solution

The fourth proportional to 300.52, 448.61 and 277.66 is: 414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.52 : 448.61 = 277.66 : x
  2. Step 2: Convert to fraction form
    300.52/448.61 = 277.66/x
  3. Step 3: Cross multiply
    300.52x = 448.61 × 277.66
  4. Step 4: Simplify right side
    300.52x = 124,561.05
  5. Step 5: Solve for x
    x = 124,561.05/300.52
  6. Step 6: Final answer
    x = 414.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.