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Finding the Fourth Proportional to 247,616, 341,723.04 and 145,646.72

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Solution

The fourth proportional to 247,616, 341,723.04 and 145,646.72 is: 201,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,616 : 341,723.04 = 145,646.72 : x
  2. Step 2: Convert to fraction form
    247,616/341,723.04 = 145,646.72/x
  3. Step 3: Cross multiply
    247,616x = 341,723.04 × 145,646.72
  4. Step 4: Simplify right side
    247,616x = 49,770,839,924.43
  5. Step 5: Solve for x
    x = 49,770,839,924.43/247,616
  6. Step 6: Final answer
    x = 201,000.10

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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.