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Finding the Fourth Proportional to 898.77, 1,348.26 and 249.51

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Solution

The fourth proportional to 898.77, 1,348.26 and 249.51 is: 374.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.77 : 1,348.26 = 249.51 : x
  2. Step 2: Convert to fraction form
    898.77/1,348.26 = 249.51/x
  3. Step 3: Cross multiply
    898.77x = 1,348.26 × 249.51
  4. Step 4: Simplify right side
    898.77x = 336,404.35
  5. Step 5: Solve for x
    x = 336,404.35/898.77
  6. Step 6: Final answer
    x = 374.29

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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.