Home / 423,255.56-634,977.42-198,496.22

Finding the Fourth Proportional to 423,255.56, 634,977.42 and 198,496.22

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Solution

The fourth proportional to 423,255.56, 634,977.42 and 198,496.22 is: 297,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,255.56 : 634,977.42 = 198,496.22 : x
  2. Step 2: Convert to fraction form
    423,255.56/634,977.42 = 198,496.22/x
  3. Step 3: Cross multiply
    423,255.56x = 634,977.42 × 198,496.22
  4. Step 4: Simplify right side
    423,255.56x = 126,040,617,655.35
  5. Step 5: Solve for x
    x = 126,040,617,655.35/423,255.56
  6. Step 6: Final answer
    x = 297,788.45

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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.