Home / 355,876.78-533,821.34-131,121.52

Finding the Fourth Proportional to 355,876.78, 533,821.34 and 131,121.52

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Solution

The fourth proportional to 355,876.78, 533,821.34 and 131,121.52 is: 196,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,876.78 : 533,821.34 = 131,121.52 : x
  2. Step 2: Convert to fraction form
    355,876.78/533,821.34 = 131,121.52/x
  3. Step 3: Cross multiply
    355,876.78x = 533,821.34 × 131,121.52
  4. Step 4: Simplify right side
    355,876.78x = 69,995,465,509.24
  5. Step 5: Solve for x
    x = 69,995,465,509.24/355,876.78
  6. Step 6: Final answer
    x = 196,684.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.