Home / 330,784.20-495,629.10-190,297.80

Finding the Fourth Proportional to 330,784.20, 495,629.10 and 190,297.80

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Solution

The fourth proportional to 330,784.20, 495,629.10 and 190,297.80 is: 285,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,784.20 : 495,629.10 = 190,297.80 : x
  2. Step 2: Convert to fraction form
    330,784.20/495,629.10 = 190,297.80/x
  3. Step 3: Cross multiply
    330,784.20x = 495,629.10 × 190,297.80
  4. Step 4: Simplify right side
    330,784.20x = 94,317,127,345.98
  5. Step 5: Solve for x
    x = 94,317,127,345.98/330,784.20
  6. Step 6: Final answer
    x = 285,131.90

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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.