Home / 352,381.60-527,881.20-211,722.40

Finding the Fourth Proportional to 352,381.60, 527,881.20 and 211,722.40

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Solution

The fourth proportional to 352,381.60, 527,881.20 and 211,722.40 is: 317,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,381.60 : 527,881.20 = 211,722.40 : x
  2. Step 2: Convert to fraction form
    352,381.60/527,881.20 = 211,722.40/x
  3. Step 3: Cross multiply
    352,381.60x = 527,881.20 × 211,722.40
  4. Step 4: Simplify right side
    352,381.60x = 111,764,274,578.88
  5. Step 5: Solve for x
    x = 111,764,274,578.88/352,381.60
  6. Step 6: Final answer
    x = 317,168.30

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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.