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Finding the Fourth Proportional to 275.90, 413.76 and 152.60

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Solution

The fourth proportional to 275.90, 413.76 and 152.60 is: 228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.90 : 413.76 = 152.60 : x
  2. Step 2: Convert to fraction form
    275.90/413.76 = 152.60/x
  3. Step 3: Cross multiply
    275.90x = 413.76 × 152.60
  4. Step 4: Simplify right side
    275.90x = 63,139.78
  5. Step 5: Solve for x
    x = 63,139.78/275.90
  6. Step 6: Final answer
    x = 228.85

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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.