Home / 330,273.87-455,806.05-187,059.39

Finding the Fourth Proportional to 330,273.87, 455,806.05 and 187,059.39

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Solution

The fourth proportional to 330,273.87, 455,806.05 and 187,059.39 is: 258,157.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,273.87 : 455,806.05 = 187,059.39 : x
  2. Step 2: Convert to fraction form
    330,273.87/455,806.05 = 187,059.39/x
  3. Step 3: Cross multiply
    330,273.87x = 455,806.05 × 187,059.39
  4. Step 4: Simplify right side
    330,273.87x = 85,262,798,456.98
  5. Step 5: Solve for x
    x = 85,262,798,456.98/330,273.87
  6. Step 6: Final answer
    x = 258,157.87

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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.