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Finding the Fourth Proportional to 880.76, 1,320.84 and 303.52

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Solution

The fourth proportional to 880.76, 1,320.84 and 303.52 is: 455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.76 : 1,320.84 = 303.52 : x
  2. Step 2: Convert to fraction form
    880.76/1,320.84 = 303.52/x
  3. Step 3: Cross multiply
    880.76x = 1,320.84 × 303.52
  4. Step 4: Simplify right side
    880.76x = 400,901.36
  5. Step 5: Solve for x
    x = 400,901.36/880.76
  6. Step 6: Final answer
    x = 455.18

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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.