Home / 331,285.14-457,181.01-188,031.78

Finding the Fourth Proportional to 331,285.14, 457,181.01 and 188,031.78

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Solution

The fourth proportional to 331,285.14, 457,181.01 and 188,031.78 is: 259,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,285.14 : 457,181.01 = 188,031.78 : x
  2. Step 2: Convert to fraction form
    331,285.14/457,181.01 = 188,031.78/x
  3. Step 3: Cross multiply
    331,285.14x = 457,181.01 × 188,031.78
  4. Step 4: Simplify right side
    331,285.14x = 85,964,559,092.50
  5. Step 5: Solve for x
    x = 85,964,559,092.50/331,285.14
  6. Step 6: Final answer
    x = 259,488.12

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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.