Home / 303,869.07-418,839.20-215,493.77

Finding the Fourth Proportional to 303,869.07, 418,839.20 and 215,493.77

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Solution

The fourth proportional to 303,869.07, 418,839.20 and 215,493.77 is: 297,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,869.07 : 418,839.20 = 215,493.77 : x
  2. Step 2: Convert to fraction form
    303,869.07/418,839.20 = 215,493.77/x
  3. Step 3: Cross multiply
    303,869.07x = 418,839.20 × 215,493.77
  4. Step 4: Simplify right side
    303,869.07x = 90,257,237,865.70
  5. Step 5: Solve for x
    x = 90,257,237,865.70/303,869.07
  6. Step 6: Final answer
    x = 297,026.74

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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.