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Finding the Fourth Proportional to 325.41, 448.27 and 278.63

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Solution

The fourth proportional to 325.41, 448.27 and 278.63 is: 383.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.41 : 448.27 = 278.63 : x
  2. Step 2: Convert to fraction form
    325.41/448.27 = 278.63/x
  3. Step 3: Cross multiply
    325.41x = 448.27 × 278.63
  4. Step 4: Simplify right side
    325.41x = 124,901.47
  5. Step 5: Solve for x
    x = 124,901.47/325.41
  6. Step 6: Final answer
    x = 383.83

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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.