Home / 325,619.90-449,369.40-189,631.90

Finding the Fourth Proportional to 325,619.90, 449,369.40 and 189,631.90

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Solution

The fourth proportional to 325,619.90, 449,369.40 and 189,631.90 is: 261,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,619.90 : 449,369.40 = 189,631.90 : x
  2. Step 2: Convert to fraction form
    325,619.90/449,369.40 = 189,631.90/x
  3. Step 3: Cross multiply
    325,619.90x = 449,369.40 × 189,631.90
  4. Step 4: Simplify right side
    325,619.90x = 85,214,773,123.86
  5. Step 5: Solve for x
    x = 85,214,773,123.86/325,619.90
  6. Step 6: Final answer
    x = 261,700.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.