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Finding the Fourth Proportional to 275.64, 413.32 and 102.26

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Solution

The fourth proportional to 275.64, 413.32 and 102.26 is: 153.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.64 : 413.32 = 102.26 : x
  2. Step 2: Convert to fraction form
    275.64/413.32 = 102.26/x
  3. Step 3: Cross multiply
    275.64x = 413.32 × 102.26
  4. Step 4: Simplify right side
    275.64x = 42,266.10
  5. Step 5: Solve for x
    x = 42,266.10/275.64
  6. Step 6: Final answer
    x = 153.34

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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.