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Finding the Fourth Proportional to 247,760.82, 341,926.49 and 138,866.45

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Solution

The fourth proportional to 247,760.82, 341,926.49 and 138,866.45 is: 191,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,760.82 : 341,926.49 = 138,866.45 : x
  2. Step 2: Convert to fraction form
    247,760.82/341,926.49 = 138,866.45/x
  3. Step 3: Cross multiply
    247,760.82x = 341,926.49 × 138,866.45
  4. Step 4: Simplify right side
    247,760.82x = 47,482,116,464.79
  5. Step 5: Solve for x
    x = 47,482,116,464.79/247,760.82
  6. Step 6: Final answer
    x = 191,644.98

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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.