Home / 252,631.72-378,618.49-102,696.87

Finding the Fourth Proportional to 252,631.72, 378,618.49 and 102,696.87

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Solution

The fourth proportional to 252,631.72, 378,618.49 and 102,696.87 is: 153,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,631.72 : 378,618.49 = 102,696.87 : x
  2. Step 2: Convert to fraction form
    252,631.72/378,618.49 = 102,696.87/x
  3. Step 3: Cross multiply
    252,631.72x = 378,618.49 × 102,696.87
  4. Step 4: Simplify right side
    252,631.72x = 38,882,933,333.64
  5. Step 5: Solve for x
    x = 38,882,933,333.64/252,631.72
  6. Step 6: Final answer
    x = 153,911.53

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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.