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Finding the Fourth Proportional to 331,805.10, 457,871.30 and 188,545.26

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Solution

The fourth proportional to 331,805.10, 457,871.30 and 188,545.26 is: 260,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,805.10 : 457,871.30 = 188,545.26 : x
  2. Step 2: Convert to fraction form
    331,805.10/457,871.30 = 188,545.26/x
  3. Step 3: Cross multiply
    331,805.10x = 457,871.30 × 188,545.26
  4. Step 4: Simplify right side
    331,805.10x = 86,329,463,305.04
  5. Step 5: Solve for x
    x = 86,329,463,305.04/331,805.10
  6. Step 6: Final answer
    x = 260,181.24

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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.