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Finding the Fourth Proportional to 247,983.82, 342,217.88 and 134,806.57

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Solution

The fourth proportional to 247,983.82, 342,217.88 and 134,806.57 is: 186,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,983.82 : 342,217.88 = 134,806.57 : x
  2. Step 2: Convert to fraction form
    247,983.82/342,217.88 = 134,806.57/x
  3. Step 3: Cross multiply
    247,983.82x = 342,217.88 × 134,806.57
  4. Step 4: Simplify right side
    247,983.82x = 46,133,218,595.47
  5. Step 5: Solve for x
    x = 46,133,218,595.47/247,983.82
  6. Step 6: Final answer
    x = 186,033.18

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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.