Home / 290,059.85-400,306.73-161,010.45

Finding the Fourth Proportional to 290,059.85, 400,306.73 and 161,010.45

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Solution

The fourth proportional to 290,059.85, 400,306.73 and 161,010.45 is: 222,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,059.85 : 400,306.73 = 161,010.45 : x
  2. Step 2: Convert to fraction form
    290,059.85/400,306.73 = 161,010.45/x
  3. Step 3: Cross multiply
    290,059.85x = 400,306.73 × 161,010.45
  4. Step 4: Simplify right side
    290,059.85x = 64,453,565,930.28
  5. Step 5: Solve for x
    x = 64,453,565,930.28/290,059.85
  6. Step 6: Final answer
    x = 222,207.81

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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.