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Finding the Fourth Proportional to 493.88, 681.26 and 297.36

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Solution

The fourth proportional to 493.88, 681.26 and 297.36 is: 410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.88 : 681.26 = 297.36 : x
  2. Step 2: Convert to fraction form
    493.88/681.26 = 297.36/x
  3. Step 3: Cross multiply
    493.88x = 681.26 × 297.36
  4. Step 4: Simplify right side
    493.88x = 202,577.99
  5. Step 5: Solve for x
    x = 202,577.99/493.88
  6. Step 6: Final answer
    x = 410.18

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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.