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Finding the Fourth Proportional to 331,699.10, 457,744.88 and 188,459.33

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Solution

The fourth proportional to 331,699.10, 457,744.88 and 188,459.33 is: 260,073.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,699.10 : 457,744.88 = 188,459.33 : x
  2. Step 2: Convert to fraction form
    331,699.10/457,744.88 = 188,459.33/x
  3. Step 3: Cross multiply
    331,699.10x = 457,744.88 × 188,459.33
  4. Step 4: Simplify right side
    331,699.10x = 86,266,291,578.15
  5. Step 5: Solve for x
    x = 86,266,291,578.15/331,699.10
  6. Step 6: Final answer
    x = 260,073.94

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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.