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Finding the Fourth Proportional to 247,855.43, 342,042.66 and 134,678.18

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Solution

The fourth proportional to 247,855.43, 342,042.66 and 134,678.18 is: 185,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,855.43 : 342,042.66 = 134,678.18 : x
  2. Step 2: Convert to fraction form
    247,855.43/342,042.66 = 134,678.18/x
  3. Step 3: Cross multiply
    247,855.43x = 342,042.66 × 134,678.18
  4. Step 4: Simplify right side
    247,855.43x = 46,065,683,786.27
  5. Step 5: Solve for x
    x = 46,065,683,786.27/247,855.43
  6. Step 6: Final answer
    x = 185,857.07

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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.