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Finding the Fourth Proportional to 566.20, 849.30 and 413.20

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Solution

The fourth proportional to 566.20, 849.30 and 413.20 is: 619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.20 : 849.30 = 413.20 : x
  2. Step 2: Convert to fraction form
    566.20/849.30 = 413.20/x
  3. Step 3: Cross multiply
    566.20x = 849.30 × 413.20
  4. Step 4: Simplify right side
    566.20x = 350,930.76
  5. Step 5: Solve for x
    x = 350,930.76/566.20
  6. Step 6: Final answer
    x = 619.80

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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.