Home / 355,505.20-533,257.64-142,369.12

Finding the Fourth Proportional to 355,505.20, 533,257.64 and 142,369.12

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Solution

The fourth proportional to 355,505.20, 533,257.64 and 142,369.12 is: 213,553.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,505.20 : 533,257.64 = 142,369.12 : x
  2. Step 2: Convert to fraction form
    355,505.20/533,257.64 = 142,369.12/x
  3. Step 3: Cross multiply
    355,505.20x = 533,257.64 × 142,369.12
  4. Step 4: Simplify right side
    355,505.20x = 75,919,420,940.08
  5. Step 5: Solve for x
    x = 75,919,420,940.08/355,505.20
  6. Step 6: Final answer
    x = 213,553.62

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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.