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Finding the Fourth Proportional to 570.94, 788.18 and 361.33

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Solution

The fourth proportional to 570.94, 788.18 and 361.33 is: 498.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.94 : 788.18 = 361.33 : x
  2. Step 2: Convert to fraction form
    570.94/788.18 = 361.33/x
  3. Step 3: Cross multiply
    570.94x = 788.18 × 361.33
  4. Step 4: Simplify right side
    570.94x = 284,793.00
  5. Step 5: Solve for x
    x = 284,793.00/570.94
  6. Step 6: Final answer
    x = 498.82

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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.