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Finding the Fourth Proportional to 371,382.96, 512,930.58 and 250,315.56

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Solution

The fourth proportional to 371,382.96, 512,930.58 and 250,315.56 is: 345,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,382.96 : 512,930.58 = 250,315.56 : x
  2. Step 2: Convert to fraction form
    371,382.96/512,930.58 = 250,315.56/x
  3. Step 3: Cross multiply
    371,382.96x = 512,930.58 × 250,315.56
  4. Step 4: Simplify right side
    371,382.96x = 128,394,505,373.83
  5. Step 5: Solve for x
    x = 128,394,505,373.83/371,382.96
  6. Step 6: Final answer
    x = 345,719.97

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1.5x scale

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.