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Finding the Fourth Proportional to 338,797.47, 507,518.55 and 203,786.97

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Solution

The fourth proportional to 338,797.47, 507,518.55 and 203,786.97 is: 305,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,797.47 : 507,518.55 = 203,786.97 : x
  2. Step 2: Convert to fraction form
    338,797.47/507,518.55 = 203,786.97/x
  3. Step 3: Cross multiply
    338,797.47x = 507,518.55 × 203,786.97
  4. Step 4: Simplify right side
    338,797.47x = 103,425,667,523.29
  5. Step 5: Solve for x
    x = 103,425,667,523.29/338,797.47
  6. Step 6: Final answer
    x = 305,272.84

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1.5x scale

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.