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Finding the Fourth Proportional to 566.93, 782.38 and 318.25

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Solution

The fourth proportional to 566.93, 782.38 and 318.25 is: 439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.93 : 782.38 = 318.25 : x
  2. Step 2: Convert to fraction form
    566.93/782.38 = 318.25/x
  3. Step 3: Cross multiply
    566.93x = 782.38 × 318.25
  4. Step 4: Simplify right side
    566.93x = 248,992.44
  5. Step 5: Solve for x
    x = 248,992.44/566.93
  6. Step 6: Final answer
    x = 439.19

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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.