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Finding the Fourth Proportional to 560.51, 773.11 and 394.60

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Solution

The fourth proportional to 560.51, 773.11 and 394.60 is: 544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.51 : 773.11 = 394.60 : x
  2. Step 2: Convert to fraction form
    560.51/773.11 = 394.60/x
  3. Step 3: Cross multiply
    560.51x = 773.11 × 394.60
  4. Step 4: Simplify right side
    560.51x = 305,069.21
  5. Step 5: Solve for x
    x = 305,069.21/560.51
  6. Step 6: Final answer
    x = 544.27

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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.