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Finding the Fourth Proportional to 568.93, 785.07 and 320.20

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Solution

The fourth proportional to 568.93, 785.07 and 320.20 is: 441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.93 : 785.07 = 320.20 : x
  2. Step 2: Convert to fraction form
    568.93/785.07 = 320.20/x
  3. Step 3: Cross multiply
    568.93x = 785.07 × 320.20
  4. Step 4: Simplify right side
    568.93x = 251,375.49
  5. Step 5: Solve for x
    x = 251,375.49/568.93
  6. Step 6: Final answer
    x = 441.84

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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.