Home / 355,701.20-490,933.32-228,535.76

Finding the Fourth Proportional to 355,701.20, 490,933.32 and 228,535.76

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Solution

The fourth proportional to 355,701.20, 490,933.32 and 228,535.76 is: 315,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,701.20 : 490,933.32 = 228,535.76 : x
  2. Step 2: Convert to fraction form
    355,701.20/490,933.32 = 228,535.76/x
  3. Step 3: Cross multiply
    355,701.20x = 490,933.32 × 228,535.76
  4. Step 4: Simplify right side
    355,701.20x = 112,195,819,395.52
  5. Step 5: Solve for x
    x = 112,195,819,395.52/355,701.20
  6. Step 6: Final answer
    x = 315,421.54

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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.