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Finding the Fourth Proportional to 288,370.96, 397,923.48 and 161,043.80

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Solution

The fourth proportional to 288,370.96, 397,923.48 and 161,043.80 is: 222,224.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,370.96 : 397,923.48 = 161,043.80 : x
  2. Step 2: Convert to fraction form
    288,370.96/397,923.48 = 161,043.80/x
  3. Step 3: Cross multiply
    288,370.96x = 397,923.48 × 161,043.80
  4. Step 4: Simplify right side
    288,370.96x = 64,083,109,328.42
  5. Step 5: Solve for x
    x = 64,083,109,328.42/288,370.96
  6. Step 6: Final answer
    x = 222,224.56

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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.