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Finding the Fourth Proportional to 535,291.23, 738,700.41 and 305,919.69

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Solution

The fourth proportional to 535,291.23, 738,700.41 and 305,919.69 is: 422,168.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,291.23 : 738,700.41 = 305,919.69 : x
  2. Step 2: Convert to fraction form
    535,291.23/738,700.41 = 305,919.69/x
  3. Step 3: Cross multiply
    535,291.23x = 738,700.41 × 305,919.69
  4. Step 4: Simplify right side
    535,291.23x = 225,982,997,086.35
  5. Step 5: Solve for x
    x = 225,982,997,086.35/535,291.23
  6. Step 6: Final answer
    x = 422,168.31

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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.