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Finding the Fourth Proportional to 247,940.65, 342,235.43 and 145,958.10

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Solution

The fourth proportional to 247,940.65, 342,235.43 and 145,958.10 is: 201,467.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,940.65 : 342,235.43 = 145,958.10 : x
  2. Step 2: Convert to fraction form
    247,940.65/342,235.43 = 145,958.10/x
  3. Step 3: Cross multiply
    247,940.65x = 342,235.43 × 145,958.10
  4. Step 4: Simplify right side
    247,940.65x = 49,952,033,574.73
  5. Step 5: Solve for x
    x = 49,952,033,574.73/247,940.65
  6. Step 6: Final answer
    x = 201,467.71

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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.