Home / 352,956.20-529,434.30-142,485.80

Finding the Fourth Proportional to 352,956.20, 529,434.30 and 142,485.80

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Solution

The fourth proportional to 352,956.20, 529,434.30 and 142,485.80 is: 213,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,956.20 : 529,434.30 = 142,485.80 : x
  2. Step 2: Convert to fraction form
    352,956.20/529,434.30 = 142,485.80/x
  3. Step 3: Cross multiply
    352,956.20x = 529,434.30 × 142,485.80
  4. Step 4: Simplify right side
    352,956.20x = 75,436,869,782.94
  5. Step 5: Solve for x
    x = 75,436,869,782.94/352,956.20
  6. Step 6: Final answer
    x = 213,728.70

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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.