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Finding the Fourth Proportional to 573.65, 791.60 and 324.98

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Solution

The fourth proportional to 573.65, 791.60 and 324.98 is: 448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.65 : 791.60 = 324.98 : x
  2. Step 2: Convert to fraction form
    573.65/791.60 = 324.98/x
  3. Step 3: Cross multiply
    573.65x = 791.60 × 324.98
  4. Step 4: Simplify right side
    573.65x = 257,248.59
  5. Step 5: Solve for x
    x = 257,248.59/573.65
  6. Step 6: Final answer
    x = 448.45

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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.