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Finding the Fourth Proportional to 217,861.54, 300,682.30 and 133,028.26

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Solution

The fourth proportional to 217,861.54, 300,682.30 and 133,028.26 is: 183,599.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,861.54 : 300,682.30 = 133,028.26 : x
  2. Step 2: Convert to fraction form
    217,861.54/300,682.30 = 133,028.26/x
  3. Step 3: Cross multiply
    217,861.54x = 300,682.30 × 133,028.26
  4. Step 4: Simplify right side
    217,861.54x = 39,999,241,678.39
  5. Step 5: Solve for x
    x = 39,999,241,678.39/217,861.54
  6. Step 6: Final answer
    x = 183,599.38

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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.