Home / 356,330.11-491,743.47-203,365.26

Finding the Fourth Proportional to 356,330.11, 491,743.47 and 203,365.26

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Solution

The fourth proportional to 356,330.11, 491,743.47 and 203,365.26 is: 280,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,330.11 : 491,743.47 = 203,365.26 : x
  2. Step 2: Convert to fraction form
    356,330.11/491,743.47 = 203,365.26/x
  3. Step 3: Cross multiply
    356,330.11x = 491,743.47 × 203,365.26
  4. Step 4: Simplify right side
    356,330.11x = 100,003,538,629.85
  5. Step 5: Solve for x
    x = 100,003,538,629.85/356,330.11
  6. Step 6: Final answer
    x = 280,648.58

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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.