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Finding the Fourth Proportional to 371,257.52, 512,335.10 and 201,491.78

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Solution

The fourth proportional to 371,257.52, 512,335.10 and 201,491.78 is: 278,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,257.52 : 512,335.10 = 201,491.78 : x
  2. Step 2: Convert to fraction form
    371,257.52/512,335.10 = 201,491.78/x
  3. Step 3: Cross multiply
    371,257.52x = 512,335.10 × 201,491.78
  4. Step 4: Simplify right side
    371,257.52x = 103,231,311,255.48
  5. Step 5: Solve for x
    x = 103,231,311,255.48/371,257.52
  6. Step 6: Final answer
    x = 278,058.51

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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.