Home / 355,910.17-533,912.24-131,428.39

Finding the Fourth Proportional to 355,910.17, 533,912.24 and 131,428.39

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Solution

The fourth proportional to 355,910.17, 533,912.24 and 131,428.39 is: 197,159.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,910.17 : 533,912.24 = 131,428.39 : x
  2. Step 2: Convert to fraction form
    355,910.17/533,912.24 = 131,428.39/x
  3. Step 3: Cross multiply
    355,910.17x = 533,912.24 × 131,428.39
  4. Step 4: Simplify right side
    355,910.17x = 70,171,226,104.49
  5. Step 5: Solve for x
    x = 70,171,226,104.49/355,910.17
  6. Step 6: Final answer
    x = 197,159.94

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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.