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Finding the Fourth Proportional to 330,611.06, 495,625.71 and 131,071.70

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Solution

The fourth proportional to 330,611.06, 495,625.71 and 131,071.70 is: 196,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,611.06 : 495,625.71 = 131,071.70 : x
  2. Step 2: Convert to fraction form
    330,611.06/495,625.71 = 131,071.70/x
  3. Step 3: Cross multiply
    330,611.06x = 495,625.71 × 131,071.70
  4. Step 4: Simplify right side
    330,611.06x = 64,962,504,373.41
  5. Step 5: Solve for x
    x = 64,962,504,373.41/330,611.06
  6. Step 6: Final answer
    x = 196,492.23

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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.