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Finding the Fourth Proportional to 246,641.09, 340,355.25 and 154,809.51

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Solution

The fourth proportional to 246,641.09, 340,355.25 and 154,809.51 is: 213,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,641.09 : 340,355.25 = 154,809.51 : x
  2. Step 2: Convert to fraction form
    246,641.09/340,355.25 = 154,809.51/x
  3. Step 3: Cross multiply
    246,641.09x = 340,355.25 × 154,809.51
  4. Step 4: Simplify right side
    246,641.09x = 52,690,229,478.43
  5. Step 5: Solve for x
    x = 52,690,229,478.43/246,641.09
  6. Step 6: Final answer
    x = 213,631.19

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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.