Home / 330,623.97-495,982.65-105,931.83

Finding the Fourth Proportional to 330,623.97, 495,982.65 and 105,931.83

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Solution

The fourth proportional to 330,623.97, 495,982.65 and 105,931.83 is: 158,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,623.97 : 495,982.65 = 105,931.83 : x
  2. Step 2: Convert to fraction form
    330,623.97/495,982.65 = 105,931.83/x
  3. Step 3: Cross multiply
    330,623.97x = 495,982.65 × 105,931.83
  4. Step 4: Simplify right side
    330,623.97x = 52,540,349,762.75
  5. Step 5: Solve for x
    x = 52,540,349,762.75/330,623.97
  6. Step 6: Final answer
    x = 158,912.71

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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.