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Finding the Fourth Proportional to 247,763.89, 341,937.96 and 138,867.69

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Solution

The fourth proportional to 247,763.89, 341,937.96 and 138,867.69 is: 191,650.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,763.89 : 341,937.96 = 138,867.69 : x
  2. Step 2: Convert to fraction form
    247,763.89/341,937.96 = 138,867.69/x
  3. Step 3: Cross multiply
    247,763.89x = 341,937.96 × 138,867.69
  4. Step 4: Simplify right side
    247,763.89x = 47,484,134,628.51
  5. Step 5: Solve for x
    x = 47,484,134,628.51/247,763.89
  6. Step 6: Final answer
    x = 191,650.75

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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.