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Finding the Fourth Proportional to 413.48, 619.32 and 237.80

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Solution

The fourth proportional to 413.48, 619.32 and 237.80 is: 356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.48 : 619.32 = 237.80 : x
  2. Step 2: Convert to fraction form
    413.48/619.32 = 237.80/x
  3. Step 3: Cross multiply
    413.48x = 619.32 × 237.80
  4. Step 4: Simplify right side
    413.48x = 147,274.30
  5. Step 5: Solve for x
    x = 147,274.30/413.48
  6. Step 6: Final answer
    x = 356.18

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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.