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Finding the Fourth Proportional to 883.77, 1,325.85 and 298.79

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Solution

The fourth proportional to 883.77, 1,325.85 and 298.79 is: 448.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.77 : 1,325.85 = 298.79 : x
  2. Step 2: Convert to fraction form
    883.77/1,325.85 = 298.79/x
  3. Step 3: Cross multiply
    883.77x = 1,325.85 × 298.79
  4. Step 4: Simplify right side
    883.77x = 396,150.72
  5. Step 5: Solve for x
    x = 396,150.72/883.77
  6. Step 6: Final answer
    x = 448.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.