Home / 289,260.33-434,170.37-139,605.98

Finding the Fourth Proportional to 289,260.33, 434,170.37 and 139,605.98

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Solution

The fourth proportional to 289,260.33, 434,170.37 and 139,605.98 is: 209,544.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,260.33 : 434,170.37 = 139,605.98 : x
  2. Step 2: Convert to fraction form
    289,260.33/434,170.37 = 139,605.98/x
  3. Step 3: Cross multiply
    289,260.33x = 434,170.37 × 139,605.98
  4. Step 4: Simplify right side
    289,260.33x = 60,612,777,121.93
  5. Step 5: Solve for x
    x = 60,612,777,121.93/289,260.33
  6. Step 6: Final answer
    x = 209,544.04

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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.