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Finding the Fourth Proportional to 290,303.04, 400,604.85 and 161,249.71

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Solution

The fourth proportional to 290,303.04, 400,604.85 and 161,249.71 is: 222,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,303.04 : 400,604.85 = 161,249.71 : x
  2. Step 2: Convert to fraction form
    290,303.04/400,604.85 = 161,249.71/x
  3. Step 3: Cross multiply
    290,303.04x = 400,604.85 × 161,249.71
  4. Step 4: Simplify right side
    290,303.04x = 64,597,415,887.09
  5. Step 5: Solve for x
    x = 64,597,415,887.09/290,303.04
  6. Step 6: Final answer
    x = 222,517.19

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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.