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Finding the Fourth Proportional to 340,711.30, 510,082.80 and 330,869.80

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Solution

The fourth proportional to 340,711.30, 510,082.80 and 330,869.80 is: 495,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,711.30 : 510,082.80 = 330,869.80 : x
  2. Step 2: Convert to fraction form
    340,711.30/510,082.80 = 330,869.80/x
  3. Step 3: Cross multiply
    340,711.30x = 510,082.80 × 330,869.80
  4. Step 4: Simplify right side
    340,711.30x = 168,770,994,019.44
  5. Step 5: Solve for x
    x = 168,770,994,019.44/340,711.30
  6. Step 6: Final answer
    x = 495,348.98

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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.