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Finding the Fourth Proportional to 247,322.25, 341,304.75 and 139,889.97

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Solution

The fourth proportional to 247,322.25, 341,304.75 and 139,889.97 is: 193,048.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,322.25 : 341,304.75 = 139,889.97 : x
  2. Step 2: Convert to fraction form
    247,322.25/341,304.75 = 139,889.97/x
  3. Step 3: Cross multiply
    247,322.25x = 341,304.75 × 139,889.97
  4. Step 4: Simplify right side
    247,322.25x = 47,745,111,238.36
  5. Step 5: Solve for x
    x = 47,745,111,238.36/247,322.25
  6. Step 6: Final answer
    x = 193,048.18

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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.