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Finding the Fourth Proportional to 413.60, 570.77 and 227.07

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Solution

The fourth proportional to 413.60, 570.77 and 227.07 is: 313.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.60 : 570.77 = 227.07 : x
  2. Step 2: Convert to fraction form
    413.60/570.77 = 227.07/x
  3. Step 3: Cross multiply
    413.60x = 570.77 × 227.07
  4. Step 4: Simplify right side
    413.60x = 129,603.61
  5. Step 5: Solve for x
    x = 129,603.61/413.60
  6. Step 6: Final answer
    x = 313.36

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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.