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Finding the Fourth Proportional to 607.26, 910.24 and 318.30

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Solution

The fourth proportional to 607.26, 910.24 and 318.30 is: 477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.26 : 910.24 = 318.30 : x
  2. Step 2: Convert to fraction form
    607.26/910.24 = 318.30/x
  3. Step 3: Cross multiply
    607.26x = 910.24 × 318.30
  4. Step 4: Simplify right side
    607.26x = 289,729.39
  5. Step 5: Solve for x
    x = 289,729.39/607.26
  6. Step 6: Final answer
    x = 477.11

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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.