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Finding the Fourth Proportional to 247,303.91, 341,265.89 and 139,895.48

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Solution

The fourth proportional to 247,303.91, 341,265.89 and 139,895.48 is: 193,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,303.91 : 341,265.89 = 139,895.48 : x
  2. Step 2: Convert to fraction form
    247,303.91/341,265.89 = 139,895.48/x
  3. Step 3: Cross multiply
    247,303.91x = 341,265.89 × 139,895.48
  4. Step 4: Simplify right side
    247,303.91x = 47,741,554,789.70
  5. Step 5: Solve for x
    x = 47,741,554,789.70/247,303.91
  6. Step 6: Final answer
    x = 193,048.12

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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.