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Finding the Fourth Proportional to 413.36, 570.42 and 266

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Solution

The fourth proportional to 413.36, 570.42 and 266 is: 367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.36 : 570.42 = 266 : x
  2. Step 2: Convert to fraction form
    413.36/570.42 = 266/x
  3. Step 3: Cross multiply
    413.36x = 570.42 × 266
  4. Step 4: Simplify right side
    413.36x = 151,731.72
  5. Step 5: Solve for x
    x = 151,731.72/413.36
  6. Step 6: Final answer
    x = 367.07

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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.