Home / 355,264.20-490,591.98-228,161.21

Finding the Fourth Proportional to 355,264.20, 490,591.98 and 228,161.21

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Solution

The fourth proportional to 355,264.20, 490,591.98 and 228,161.21 is: 315,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,264.20 : 490,591.98 = 228,161.21 : x
  2. Step 2: Convert to fraction form
    355,264.20/490,591.98 = 228,161.21/x
  3. Step 3: Cross multiply
    355,264.20x = 490,591.98 × 228,161.21
  4. Step 4: Simplify right side
    355,264.20x = 111,934,057,320.14
  5. Step 5: Solve for x
    x = 111,934,057,320.14/355,264.20
  6. Step 6: Final answer
    x = 315,072.72

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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.