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Finding the Fourth Proportional to 290,034.80, 400,250.43 and 160,982.22

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Solution

The fourth proportional to 290,034.80, 400,250.43 and 160,982.22 is: 222,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,034.80 : 400,250.43 = 160,982.22 : x
  2. Step 2: Convert to fraction form
    290,034.80/400,250.43 = 160,982.22/x
  3. Step 3: Cross multiply
    290,034.80x = 400,250.43 × 160,982.22
  4. Step 4: Simplify right side
    290,034.80x = 64,433,202,777.35
  5. Step 5: Solve for x
    x = 64,433,202,777.35/290,034.80
  6. Step 6: Final answer
    x = 222,156.80

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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.