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Finding the Fourth Proportional to 290,674.68, 401,164.28 and 161,626.02

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Solution

The fourth proportional to 290,674.68, 401,164.28 and 161,626.02 is: 223,062.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,674.68 : 401,164.28 = 161,626.02 : x
  2. Step 2: Convert to fraction form
    290,674.68/401,164.28 = 161,626.02/x
  3. Step 3: Cross multiply
    290,674.68x = 401,164.28 × 161,626.02
  4. Step 4: Simplify right side
    290,674.68x = 64,838,585,134.44
  5. Step 5: Solve for x
    x = 64,838,585,134.44/290,674.68
  6. Step 6: Final answer
    x = 223,062.38

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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.