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Finding the Fourth Proportional to 247,035.28, 340,909.88 and 133,858

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Solution

The fourth proportional to 247,035.28, 340,909.88 and 133,858 is: 184,724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,035.28 : 340,909.88 = 133,858 : x
  2. Step 2: Convert to fraction form
    247,035.28/340,909.88 = 133,858/x
  3. Step 3: Cross multiply
    247,035.28x = 340,909.88 × 133,858
  4. Step 4: Simplify right side
    247,035.28x = 45,633,514,717.04
  5. Step 5: Solve for x
    x = 45,633,514,717.04/247,035.28
  6. Step 6: Final answer
    x = 184,724.69

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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.