Home / 430,935.14-646,400.96-131,414.85

Finding the Fourth Proportional to 430,935.14, 646,400.96 and 131,414.85

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Solution

The fourth proportional to 430,935.14, 646,400.96 and 131,414.85 is: 197,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,935.14 : 646,400.96 = 131,414.85 : x
  2. Step 2: Convert to fraction form
    430,935.14/646,400.96 = 131,414.85/x
  3. Step 3: Cross multiply
    430,935.14x = 646,400.96 × 131,414.85
  4. Step 4: Simplify right side
    430,935.14x = 84,946,685,033.99
  5. Step 5: Solve for x
    x = 84,946,685,033.99/430,935.14
  6. Step 6: Final answer
    x = 197,121.74

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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.