Home / 355,872.78-533,815.34-131,117.52

Finding the Fourth Proportional to 355,872.78, 533,815.34 and 131,117.52

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Solution

The fourth proportional to 355,872.78, 533,815.34 and 131,117.52 is: 196,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,872.78 : 533,815.34 = 131,117.52 : x
  2. Step 2: Convert to fraction form
    355,872.78/533,815.34 = 131,117.52/x
  3. Step 3: Cross multiply
    355,872.78x = 533,815.34 × 131,117.52
  4. Step 4: Simplify right side
    355,872.78x = 69,992,543,518.76
  5. Step 5: Solve for x
    x = 69,992,543,518.76/355,872.78
  6. Step 6: Final answer
    x = 196,678.55

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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.