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Finding the Fourth Proportional to 571.08, 860.88 and 475.50

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Solution

The fourth proportional to 571.08, 860.88 and 475.50 is: 716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.08 : 860.88 = 475.50 : x
  2. Step 2: Convert to fraction form
    571.08/860.88 = 475.50/x
  3. Step 3: Cross multiply
    571.08x = 860.88 × 475.50
  4. Step 4: Simplify right side
    571.08x = 409,348.44
  5. Step 5: Solve for x
    x = 409,348.44/571.08
  6. Step 6: Final answer
    x = 716.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.