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Finding the Fourth Proportional to 575.18, 857.25 and 574.27

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Solution

The fourth proportional to 575.18, 857.25 and 574.27 is: 855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.18 : 857.25 = 574.27 : x
  2. Step 2: Convert to fraction form
    575.18/857.25 = 574.27/x
  3. Step 3: Cross multiply
    575.18x = 857.25 × 574.27
  4. Step 4: Simplify right side
    575.18x = 492,290.09
  5. Step 5: Solve for x
    x = 492,290.09/575.18
  6. Step 6: Final answer
    x = 855.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.