Home / 427,867.83-641,816.63-203,112.48

Finding the Fourth Proportional to 427,867.83, 641,816.63 and 203,112.48

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Solution

The fourth proportional to 427,867.83, 641,816.63 and 203,112.48 is: 304,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,867.83 : 641,816.63 = 203,112.48 : x
  2. Step 2: Convert to fraction form
    427,867.83/641,816.63 = 203,112.48/x
  3. Step 3: Cross multiply
    427,867.83x = 641,816.63 × 203,112.48
  4. Step 4: Simplify right side
    427,867.83x = 130,360,966,408.98
  5. Step 5: Solve for x
    x = 130,360,966,408.98/427,867.83
  6. Step 6: Final answer
    x = 304,675.78

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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.