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Finding the Fourth Proportional to 575.01, 793.35 and 378.81

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Solution

The fourth proportional to 575.01, 793.35 and 378.81 is: 522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.01 : 793.35 = 378.81 : x
  2. Step 2: Convert to fraction form
    575.01/793.35 = 378.81/x
  3. Step 3: Cross multiply
    575.01x = 793.35 × 378.81
  4. Step 4: Simplify right side
    575.01x = 300,528.91
  5. Step 5: Solve for x
    x = 300,528.91/575.01
  6. Step 6: Final answer
    x = 522.65

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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.