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Finding the Fourth Proportional to 575.15, 793.56 and 339.08

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Solution

The fourth proportional to 575.15, 793.56 and 339.08 is: 467.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.15 : 793.56 = 339.08 : x
  2. Step 2: Convert to fraction form
    575.15/793.56 = 339.08/x
  3. Step 3: Cross multiply
    575.15x = 793.56 × 339.08
  4. Step 4: Simplify right side
    575.15x = 269,076.36
  5. Step 5: Solve for x
    x = 269,076.36/575.15
  6. Step 6: Final answer
    x = 467.84

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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.