Home / 331,420.68-457,215.03-223,951.50

Finding the Fourth Proportional to 331,420.68, 457,215.03 and 223,951.50

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Solution

The fourth proportional to 331,420.68, 457,215.03 and 223,951.50 is: 308,954.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,420.68 : 457,215.03 = 223,951.50 : x
  2. Step 2: Convert to fraction form
    331,420.68/457,215.03 = 223,951.50/x
  3. Step 3: Cross multiply
    331,420.68x = 457,215.03 × 223,951.50
  4. Step 4: Simplify right side
    331,420.68x = 102,393,991,791.05
  5. Step 5: Solve for x
    x = 102,393,991,791.05/331,420.68
  6. Step 6: Final answer
    x = 308,954.75

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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.