Home / 331,288.14-457,185.15-188,034.78

Finding the Fourth Proportional to 331,288.14, 457,185.15 and 188,034.78

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Solution

The fourth proportional to 331,288.14, 457,185.15 and 188,034.78 is: 259,492.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,288.14 : 457,185.15 = 188,034.78 : x
  2. Step 2: Convert to fraction form
    331,288.14/457,185.15 = 188,034.78/x
  3. Step 3: Cross multiply
    331,288.14x = 457,185.15 × 188,034.78
  4. Step 4: Simplify right side
    331,288.14x = 85,966,709,099.52
  5. Step 5: Solve for x
    x = 85,966,709,099.52/331,288.14
  6. Step 6: Final answer
    x = 259,492.26

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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.