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Finding the Fourth Proportional to 881.44, 1,216.26 and 508.27

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Solution

The fourth proportional to 881.44, 1,216.26 and 508.27 is: 701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    881.44 : 1,216.26 = 508.27 : x
  2. Step 2: Convert to fraction form
    881.44/1,216.26 = 508.27/x
  3. Step 3: Cross multiply
    881.44x = 1,216.26 × 508.27
  4. Step 4: Simplify right side
    881.44x = 618,188.47
  5. Step 5: Solve for x
    x = 618,188.47/881.44
  6. Step 6: Final answer
    x = 701.34

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1.5x scale

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.