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Finding the Fourth Proportional to 403,741.20, 605,320.20 and 226,302.60

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Solution

The fourth proportional to 403,741.20, 605,320.20 and 226,302.60 is: 339,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,741.20 : 605,320.20 = 226,302.60 : x
  2. Step 2: Convert to fraction form
    403,741.20/605,320.20 = 226,302.60/x
  3. Step 3: Cross multiply
    403,741.20x = 605,320.20 × 226,302.60
  4. Step 4: Simplify right side
    403,741.20x = 136,985,535,092.52
  5. Step 5: Solve for x
    x = 136,985,535,092.52/403,741.20
  6. Step 6: Final answer
    x = 339,290.45

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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.