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Finding the Fourth Proportional to 575.12, 793.42 and 368

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Solution

The fourth proportional to 575.12, 793.42 and 368 is: 507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.12 : 793.42 = 368 : x
  2. Step 2: Convert to fraction form
    575.12/793.42 = 368/x
  3. Step 3: Cross multiply
    575.12x = 793.42 × 368
  4. Step 4: Simplify right side
    575.12x = 291,978.56
  5. Step 5: Solve for x
    x = 291,978.56/575.12
  6. Step 6: Final answer
    x = 507.68

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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.