Home / 330,811.20-495,669.60-190,324.80

Finding the Fourth Proportional to 330,811.20, 495,669.60 and 190,324.80

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Solution

The fourth proportional to 330,811.20, 495,669.60 and 190,324.80 is: 285,172.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,811.20 : 495,669.60 = 190,324.80 : x
  2. Step 2: Convert to fraction form
    330,811.20/495,669.60 = 190,324.80/x
  3. Step 3: Cross multiply
    330,811.20x = 495,669.60 × 190,324.80
  4. Step 4: Simplify right side
    330,811.20x = 94,338,217,486.08
  5. Step 5: Solve for x
    x = 94,338,217,486.08/330,811.20
  6. Step 6: Final answer
    x = 285,172.38

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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.