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Finding the Fourth Proportional to 200,220.88, 276,404.64 and 115,321.60

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Solution

The fourth proportional to 200,220.88, 276,404.64 and 115,321.60 is: 159,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,220.88 : 276,404.64 = 115,321.60 : x
  2. Step 2: Convert to fraction form
    200,220.88/276,404.64 = 115,321.60/x
  3. Step 3: Cross multiply
    200,220.88x = 276,404.64 × 115,321.60
  4. Step 4: Simplify right side
    200,220.88x = 31,875,425,332.22
  5. Step 5: Solve for x
    x = 31,875,425,332.22/200,220.88
  6. Step 6: Final answer
    x = 159,201.30

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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.