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Finding the Fourth Proportional to 288,372.48, 397,951.20 and 161,044.80

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Solution

The fourth proportional to 288,372.48, 397,951.20 and 161,044.80 is: 222,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,372.48 : 397,951.20 = 161,044.80 : x
  2. Step 2: Convert to fraction form
    288,372.48/397,951.20 = 161,044.80/x
  3. Step 3: Cross multiply
    288,372.48x = 397,951.20 × 161,044.80
  4. Step 4: Simplify right side
    288,372.48x = 64,087,971,413.76
  5. Step 5: Solve for x
    x = 64,087,971,413.76/288,372.48
  6. Step 6: Final answer
    x = 222,240.25

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1.5x scale

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.