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Finding the Fourth Proportional to 547,961.00, 756,190.62 and 306,253.76

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Solution

The fourth proportional to 547,961.00, 756,190.62 and 306,253.76 is: 422,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,961.00 : 756,190.62 = 306,253.76 : x
  2. Step 2: Convert to fraction form
    547,961.00/756,190.62 = 306,253.76/x
  3. Step 3: Cross multiply
    547,961.00x = 756,190.62 × 306,253.76
  4. Step 4: Simplify right side
    547,961.00x = 231,586,216,870.78
  5. Step 5: Solve for x
    x = 231,586,216,870.78/547,961.00
  6. Step 6: Final answer
    x = 422,632.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.