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Finding the Fourth Proportional to 290,226.42, 399,797.46 and 247,066.77

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Solution

The fourth proportional to 290,226.42, 399,797.46 and 247,066.77 is: 340,343.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,226.42 : 399,797.46 = 247,066.77 : x
  2. Step 2: Convert to fraction form
    290,226.42/399,797.46 = 247,066.77/x
  3. Step 3: Cross multiply
    290,226.42x = 399,797.46 × 247,066.77
  4. Step 4: Simplify right side
    290,226.42x = 98,776,667,096.40
  5. Step 5: Solve for x
    x = 98,776,667,096.40/290,226.42
  6. Step 6: Final answer
    x = 340,343.47

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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.