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Finding the Fourth Proportional to 568.94, 785.16 and 347.87

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Solution

The fourth proportional to 568.94, 785.16 and 347.87 is: 480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.94 : 785.16 = 347.87 : x
  2. Step 2: Convert to fraction form
    568.94/785.16 = 347.87/x
  3. Step 3: Cross multiply
    568.94x = 785.16 × 347.87
  4. Step 4: Simplify right side
    568.94x = 273,135.57
  5. Step 5: Solve for x
    x = 273,135.57/568.94
  6. Step 6: Final answer
    x = 480.08

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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.