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Finding the Fourth Proportional to 607.78, 910.96 and 282.48

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Solution

The fourth proportional to 607.78, 910.96 and 282.48 is: 423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.78 : 910.96 = 282.48 : x
  2. Step 2: Convert to fraction form
    607.78/910.96 = 282.48/x
  3. Step 3: Cross multiply
    607.78x = 910.96 × 282.48
  4. Step 4: Simplify right side
    607.78x = 257,327.98
  5. Step 5: Solve for x
    x = 257,327.98/607.78
  6. Step 6: Final answer
    x = 423.39

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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.