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Finding the Fourth Proportional to 518,747.67, 778,189.56 and 203,163.57

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Solution

The fourth proportional to 518,747.67, 778,189.56 and 203,163.57 is: 304,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,747.67 : 778,189.56 = 203,163.57 : x
  2. Step 2: Convert to fraction form
    518,747.67/778,189.56 = 203,163.57/x
  3. Step 3: Cross multiply
    518,747.67x = 778,189.56 × 203,163.57
  4. Step 4: Simplify right side
    518,747.67x = 158,099,769,146.33
  5. Step 5: Solve for x
    x = 158,099,769,146.33/518,747.67
  6. Step 6: Final answer
    x = 304,772.01

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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.