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Finding the Fourth Proportional to 425,072.82, 637,756.83 and 188,581.56

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Solution

The fourth proportional to 425,072.82, 637,756.83 and 188,581.56 is: 282,937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,072.82 : 637,756.83 = 188,581.56 : x
  2. Step 2: Convert to fraction form
    425,072.82/637,756.83 = 188,581.56/x
  3. Step 3: Cross multiply
    425,072.82x = 637,756.83 × 188,581.56
  4. Step 4: Simplify right side
    425,072.82x = 120,269,177,902.06
  5. Step 5: Solve for x
    x = 120,269,177,902.06/425,072.82
  6. Step 6: Final answer
    x = 282,937.82

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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.