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Finding the Fourth Proportional to 560.26, 772.94 and 361.07

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Solution

The fourth proportional to 560.26, 772.94 and 361.07 is: 498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.26 : 772.94 = 361.07 : x
  2. Step 2: Convert to fraction form
    560.26/772.94 = 361.07/x
  3. Step 3: Cross multiply
    560.26x = 772.94 × 361.07
  4. Step 4: Simplify right side
    560.26x = 279,083.21
  5. Step 5: Solve for x
    x = 279,083.21/560.26
  6. Step 6: Final answer
    x = 498.13

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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.