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Finding the Fourth Proportional to 247,617.43, 340,946.93 and 193,388.65

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Solution

The fourth proportional to 247,617.43, 340,946.93 and 193,388.65 is: 266,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,617.43 : 340,946.93 = 193,388.65 : x
  2. Step 2: Convert to fraction form
    247,617.43/340,946.93 = 193,388.65/x
  3. Step 3: Cross multiply
    247,617.43x = 340,946.93 × 193,388.65
  4. Step 4: Simplify right side
    247,617.43x = 65,935,263,842.67
  5. Step 5: Solve for x
    x = 65,935,263,842.67/247,617.43
  6. Step 6: Final answer
    x = 266,278.77

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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.