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Finding the Fourth Proportional to 247,661.66, 341,809.20 and 138,773.36

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Solution

The fourth proportional to 247,661.66, 341,809.20 and 138,773.36 is: 191,527.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,661.66 : 341,809.20 = 138,773.36 : x
  2. Step 2: Convert to fraction form
    247,661.66/341,809.20 = 138,773.36/x
  3. Step 3: Cross multiply
    247,661.66x = 341,809.20 × 138,773.36
  4. Step 4: Simplify right side
    247,661.66x = 47,434,011,162.91
  5. Step 5: Solve for x
    x = 47,434,011,162.91/247,661.66
  6. Step 6: Final answer
    x = 191,527.47

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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.