Home / 219,114.45-328,708.01-76,922.82

Finding the Fourth Proportional to 219,114.45, 328,708.01 and 76,922.82

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Solution

The fourth proportional to 219,114.45, 328,708.01 and 76,922.82 is: 115,396.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,114.45 : 328,708.01 = 76,922.82 : x
  2. Step 2: Convert to fraction form
    219,114.45/328,708.01 = 76,922.82/x
  3. Step 3: Cross multiply
    219,114.45x = 328,708.01 × 76,922.82
  4. Step 4: Simplify right side
    219,114.45x = 25,285,147,085.79
  5. Step 5: Solve for x
    x = 25,285,147,085.79/219,114.45
  6. Step 6: Final answer
    x = 115,396.99

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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.