Home / 355,834.43-533,667.80-131,072.79

Finding the Fourth Proportional to 355,834.43, 533,667.80 and 131,072.79

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Solution

The fourth proportional to 355,834.43, 533,667.80 and 131,072.79 is: 196,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,834.43 : 533,667.80 = 131,072.79 : x
  2. Step 2: Convert to fraction form
    355,834.43/533,667.80 = 131,072.79/x
  3. Step 3: Cross multiply
    355,834.43x = 533,667.80 × 131,072.79
  4. Step 4: Simplify right side
    355,834.43x = 69,949,327,806.84
  5. Step 5: Solve for x
    x = 69,949,327,806.84/355,834.43
  6. Step 6: Final answer
    x = 196,578.30

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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.