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Finding the Fourth Proportional to 217,517, 300,173.55 and 132,651.68

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Solution

The fourth proportional to 217,517, 300,173.55 and 132,651.68 is: 183,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,517 : 300,173.55 = 132,651.68 : x
  2. Step 2: Convert to fraction form
    217,517/300,173.55 = 132,651.68/x
  3. Step 3: Cross multiply
    217,517x = 300,173.55 × 132,651.68
  4. Step 4: Simplify right side
    217,517x = 39,818,525,699.06
  5. Step 5: Solve for x
    x = 39,818,525,699.06/217,517
  6. Step 6: Final answer
    x = 183,059.37

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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.