Home / 290,319.11-400,626.70-161,265.90

Finding the Fourth Proportional to 290,319.11, 400,626.70 and 161,265.90

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Solution

The fourth proportional to 290,319.11, 400,626.70 and 161,265.90 is: 222,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,319.11 : 400,626.70 = 161,265.90 : x
  2. Step 2: Convert to fraction form
    290,319.11/400,626.70 = 161,265.90/x
  3. Step 3: Cross multiply
    290,319.11x = 400,626.70 × 161,265.90
  4. Step 4: Simplify right side
    290,319.11x = 64,607,424,936.37
  5. Step 5: Solve for x
    x = 64,607,424,936.37/290,319.11
  6. Step 6: Final answer
    x = 222,539.35

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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.