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Finding the Fourth Proportional to 573.67, 860.49 and 140.83

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Solution

The fourth proportional to 573.67, 860.49 and 140.83 is: 211.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.67 : 860.49 = 140.83 : x
  2. Step 2: Convert to fraction form
    573.67/860.49 = 140.83/x
  3. Step 3: Cross multiply
    573.67x = 860.49 × 140.83
  4. Step 4: Simplify right side
    573.67x = 121,182.81
  5. Step 5: Solve for x
    x = 121,182.81/573.67
  6. Step 6: Final answer
    x = 211.24

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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.