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Finding the Fourth Proportional to 566.16, 849.86 and 422.80

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Solution

The fourth proportional to 566.16, 849.86 and 422.80 is: 634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.16 : 849.86 = 422.80 : x
  2. Step 2: Convert to fraction form
    566.16/849.86 = 422.80/x
  3. Step 3: Cross multiply
    566.16x = 849.86 × 422.80
  4. Step 4: Simplify right side
    566.16x = 359,320.81
  5. Step 5: Solve for x
    x = 359,320.81/566.16
  6. Step 6: Final answer
    x = 634.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.