Home / 198,899.87-298,349.81-163,765.71

Finding the Fourth Proportional to 198,899.87, 298,349.81 and 163,765.71

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Solution

The fourth proportional to 198,899.87, 298,349.81 and 163,765.71 is: 245,648.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,899.87 : 298,349.81 = 163,765.71 : x
  2. Step 2: Convert to fraction form
    198,899.87/298,349.81 = 163,765.71/x
  3. Step 3: Cross multiply
    198,899.87x = 298,349.81 × 163,765.71
  4. Step 4: Simplify right side
    198,899.87x = 48,859,467,644.19
  5. Step 5: Solve for x
    x = 48,859,467,644.19/198,899.87
  6. Step 6: Final answer
    x = 245,648.57

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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.