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Finding the Fourth Proportional to 371,256.70, 512,334.15 and 201,490.83

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Solution

The fourth proportional to 371,256.70, 512,334.15 and 201,490.83 is: 278,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,256.70 : 512,334.15 = 201,490.83 : x
  2. Step 2: Convert to fraction form
    371,256.70/512,334.15 = 201,490.83/x
  3. Step 3: Cross multiply
    371,256.70x = 512,334.15 × 201,490.83
  4. Step 4: Simplify right side
    371,256.70x = 103,230,633,120.85
  5. Step 5: Solve for x
    x = 103,230,633,120.85/371,256.70
  6. Step 6: Final answer
    x = 278,057.29

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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.