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Finding the Fourth Proportional to 413.95, 621.02 and 182.91

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Solution

The fourth proportional to 413.95, 621.02 and 182.91 is: 274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.95 : 621.02 = 182.91 : x
  2. Step 2: Convert to fraction form
    413.95/621.02 = 182.91/x
  3. Step 3: Cross multiply
    413.95x = 621.02 × 182.91
  4. Step 4: Simplify right side
    413.95x = 113,587.66
  5. Step 5: Solve for x
    x = 113,587.66/413.95
  6. Step 6: Final answer
    x = 274.40

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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.