Home / 363,561.45-545,379.58-139,110.65

Finding the Fourth Proportional to 363,561.45, 545,379.58 and 139,110.65

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Solution

The fourth proportional to 363,561.45, 545,379.58 and 139,110.65 is: 208,680.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,561.45 : 545,379.58 = 139,110.65 : x
  2. Step 2: Convert to fraction form
    363,561.45/545,379.58 = 139,110.65/x
  3. Step 3: Cross multiply
    363,561.45x = 545,379.58 × 139,110.65
  4. Step 4: Simplify right side
    363,561.45x = 75,868,107,362.69
  5. Step 5: Solve for x
    x = 75,868,107,362.69/363,561.45
  6. Step 6: Final answer
    x = 208,680.29

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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.