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Finding the Fourth Proportional to 371,220.39, 512,284.50 and 201,454.52

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Solution

The fourth proportional to 371,220.39, 512,284.50 and 201,454.52 is: 278,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,220.39 : 512,284.50 = 201,454.52 : x
  2. Step 2: Convert to fraction form
    371,220.39/512,284.50 = 201,454.52/x
  3. Step 3: Cross multiply
    371,220.39x = 512,284.50 × 201,454.52
  4. Step 4: Simplify right side
    371,220.39x = 103,202,025,489.52
  5. Step 5: Solve for x
    x = 103,202,025,489.52/371,220.39
  6. Step 6: Final answer
    x = 278,007.43

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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.