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Finding the Fourth Proportional to 217,461.89, 300,087.87 and 131,441.70

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Solution

The fourth proportional to 217,461.89, 300,087.87 and 131,441.70 is: 181,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,461.89 : 300,087.87 = 131,441.70 : x
  2. Step 2: Convert to fraction form
    217,461.89/300,087.87 = 131,441.70/x
  3. Step 3: Cross multiply
    217,461.89x = 300,087.87 × 131,441.70
  4. Step 4: Simplify right side
    217,461.89x = 39,444,059,782.18
  5. Step 5: Solve for x
    x = 39,444,059,782.18/217,461.89
  6. Step 6: Final answer
    x = 181,383.78

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1.5x scale

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.