Home / 303,450.10-455,029.75-143,392.82

Finding the Fourth Proportional to 303,450.10, 455,029.75 and 143,392.82

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Solution

The fourth proportional to 303,450.10, 455,029.75 and 143,392.82 is: 215,020.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,450.10 : 455,029.75 = 143,392.82 : x
  2. Step 2: Convert to fraction form
    303,450.10/455,029.75 = 143,392.82/x
  3. Step 3: Cross multiply
    303,450.10x = 455,029.75 × 143,392.82
  4. Step 4: Simplify right side
    303,450.10x = 65,247,996,940.49
  5. Step 5: Solve for x
    x = 65,247,996,940.49/303,450.10
  6. Step 6: Final answer
    x = 215,020.52

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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.