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Finding the Fourth Proportional to 401,028.30, 601,542.45 and 251,729.10

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Solution

The fourth proportional to 401,028.30, 601,542.45 and 251,729.10 is: 377,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,028.30 : 601,542.45 = 251,729.10 : x
  2. Step 2: Convert to fraction form
    401,028.30/601,542.45 = 251,729.10/x
  3. Step 3: Cross multiply
    401,028.30x = 601,542.45 × 251,729.10
  4. Step 4: Simplify right side
    401,028.30x = 151,425,739,550.30
  5. Step 5: Solve for x
    x = 151,425,739,550.30/401,028.30
  6. Step 6: Final answer
    x = 377,593.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.