Home / 355,265.20-490,593.36-228,162.21

Finding the Fourth Proportional to 355,265.20, 490,593.36 and 228,162.21

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Solution

The fourth proportional to 355,265.20, 490,593.36 and 228,162.21 is: 315,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,265.20 : 490,593.36 = 228,162.21 : x
  2. Step 2: Convert to fraction form
    355,265.20/490,593.36 = 228,162.21/x
  3. Step 3: Cross multiply
    355,265.20x = 490,593.36 × 228,162.21
  4. Step 4: Simplify right side
    355,265.20x = 111,934,865,228.93
  5. Step 5: Solve for x
    x = 111,934,865,228.93/355,265.20
  6. Step 6: Final answer
    x = 315,074.11

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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.