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Finding the Fourth Proportional to 330,343.57, 495,589.20 and 105,717.48

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Solution

The fourth proportional to 330,343.57, 495,589.20 and 105,717.48 is: 158,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,343.57 : 495,589.20 = 105,717.48 : x
  2. Step 2: Convert to fraction form
    330,343.57/495,589.20 = 105,717.48/x
  3. Step 3: Cross multiply
    330,343.57x = 495,589.20 × 105,717.48
  4. Step 4: Simplify right side
    330,343.57x = 52,392,441,339.22
  5. Step 5: Solve for x
    x = 52,392,441,339.22/330,343.57
  6. Step 6: Final answer
    x = 158,599.85

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1.5x scale

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.