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Finding the Fourth Proportional to 340,924.75, 511,305.10 and 104,269.48

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Solution

The fourth proportional to 340,924.75, 511,305.10 and 104,269.48 is: 156,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,924.75 : 511,305.10 = 104,269.48 : x
  2. Step 2: Convert to fraction form
    340,924.75/511,305.10 = 104,269.48/x
  3. Step 3: Cross multiply
    340,924.75x = 511,305.10 × 104,269.48
  4. Step 4: Simplify right side
    340,924.75x = 53,313,516,898.35
  5. Step 5: Solve for x
    x = 53,313,516,898.35/340,924.75
  6. Step 6: Final answer
    x = 156,379.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.