Home / 331,144.20-457,119.45-223,859.70

Finding the Fourth Proportional to 331,144.20, 457,119.45 and 223,859.70

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Solution

The fourth proportional to 331,144.20, 457,119.45 and 223,859.70 is: 309,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,144.20 : 457,119.45 = 223,859.70 : x
  2. Step 2: Convert to fraction form
    331,144.20/457,119.45 = 223,859.70/x
  3. Step 3: Cross multiply
    331,144.20x = 457,119.45 × 223,859.70
  4. Step 4: Simplify right side
    331,144.20x = 102,330,622,941.17
  5. Step 5: Solve for x
    x = 102,330,622,941.17/331,144.20
  6. Step 6: Final answer
    x = 309,021.34

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1.5x scale

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.