Home / 331,146.20-457,122.21-223,861.70

Finding the Fourth Proportional to 331,146.20, 457,122.21 and 223,861.70

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Solution

The fourth proportional to 331,146.20, 457,122.21 and 223,861.70 is: 309,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,146.20 : 457,122.21 = 223,861.70 : x
  2. Step 2: Convert to fraction form
    331,146.20/457,122.21 = 223,861.70/x
  3. Step 3: Cross multiply
    331,146.20x = 457,122.21 × 223,861.70
  4. Step 4: Simplify right side
    331,146.20x = 102,332,155,038.36
  5. Step 5: Solve for x
    x = 102,332,155,038.36/331,146.20
  6. Step 6: Final answer
    x = 309,024.10

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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.