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Finding the Fourth Proportional to 577.48, 796.92 and 315.52

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Solution

The fourth proportional to 577.48, 796.92 and 315.52 is: 435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.48 : 796.92 = 315.52 : x
  2. Step 2: Convert to fraction form
    577.48/796.92 = 315.52/x
  3. Step 3: Cross multiply
    577.48x = 796.92 × 315.52
  4. Step 4: Simplify right side
    577.48x = 251,444.20
  5. Step 5: Solve for x
    x = 251,444.20/577.48
  6. Step 6: Final answer
    x = 435.42

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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.