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Finding the Fourth Proportional to 880.63, 1,320.96 and 264.37

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Solution

The fourth proportional to 880.63, 1,320.96 and 264.37 is: 396.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.63 : 1,320.96 = 264.37 : x
  2. Step 2: Convert to fraction form
    880.63/1,320.96 = 264.37/x
  3. Step 3: Cross multiply
    880.63x = 1,320.96 × 264.37
  4. Step 4: Simplify right side
    880.63x = 349,222.20
  5. Step 5: Solve for x
    x = 349,222.20/880.63
  6. Step 6: Final answer
    x = 396.56

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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.