Home / 330,642.09-495,997.74-141,122.61

Finding the Fourth Proportional to 330,642.09, 495,997.74 and 141,122.61

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Solution

The fourth proportional to 330,642.09, 495,997.74 and 141,122.61 is: 211,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,642.09 : 495,997.74 = 141,122.61 : x
  2. Step 2: Convert to fraction form
    330,642.09/495,997.74 = 141,122.61/x
  3. Step 3: Cross multiply
    330,642.09x = 495,997.74 × 141,122.61
  4. Step 4: Simplify right side
    330,642.09x = 69,996,495,622.90
  5. Step 5: Solve for x
    x = 69,996,495,622.90/330,642.09
  6. Step 6: Final answer
    x = 211,698.68

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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.