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Finding the Fourth Proportional to 247,958.34, 342,183.90 and 145,988.28

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Solution

The fourth proportional to 247,958.34, 342,183.90 and 145,988.28 is: 201,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,958.34 : 342,183.90 = 145,988.28 : x
  2. Step 2: Convert to fraction form
    247,958.34/342,183.90 = 145,988.28/x
  3. Step 3: Cross multiply
    247,958.34x = 342,183.90 × 145,988.28
  4. Step 4: Simplify right side
    247,958.34x = 49,954,839,004.69
  5. Step 5: Solve for x
    x = 49,954,839,004.69/247,958.34
  6. Step 6: Final answer
    x = 201,464.65

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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.