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Finding the Fourth Proportional to 881.64, 1,322.22 and 304.68

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Solution

The fourth proportional to 881.64, 1,322.22 and 304.68 is: 456.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    881.64 : 1,322.22 = 304.68 : x
  2. Step 2: Convert to fraction form
    881.64/1,322.22 = 304.68/x
  3. Step 3: Cross multiply
    881.64x = 1,322.22 × 304.68
  4. Step 4: Simplify right side
    881.64x = 402,853.99
  5. Step 5: Solve for x
    x = 402,853.99/881.64
  6. Step 6: Final answer
    x = 456.94

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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.