Home / 304,079.20-455,427.60-192,104.80

Finding the Fourth Proportional to 304,079.20, 455,427.60 and 192,104.80

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Solution

The fourth proportional to 304,079.20, 455,427.60 and 192,104.80 is: 287,720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,079.20 : 455,427.60 = 192,104.80 : x
  2. Step 2: Convert to fraction form
    304,079.20/455,427.60 = 192,104.80/x
  3. Step 3: Cross multiply
    304,079.20x = 455,427.60 × 192,104.80
  4. Step 4: Simplify right side
    304,079.20x = 87,489,828,012.48
  5. Step 5: Solve for x
    x = 87,489,828,012.48/304,079.20
  6. Step 6: Final answer
    x = 287,720.53

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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.