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Finding the Fourth Proportional to 247,991.72, 342,232.26 and 134,814.56

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Solution

The fourth proportional to 247,991.72, 342,232.26 and 134,814.56 is: 186,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,991.72 : 342,232.26 = 134,814.56 : x
  2. Step 2: Convert to fraction form
    247,991.72/342,232.26 = 134,814.56/x
  3. Step 3: Cross multiply
    247,991.72x = 342,232.26 × 134,814.56
  4. Step 4: Simplify right side
    247,991.72x = 46,137,891,549.71
  5. Step 5: Solve for x
    x = 46,137,891,549.71/247,991.72
  6. Step 6: Final answer
    x = 186,046.10

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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.