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Finding the Fourth Proportional to 218,940.57, 302,309.01 and 171,329.58

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Solution

The fourth proportional to 218,940.57, 302,309.01 and 171,329.58 is: 236,568.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,940.57 : 302,309.01 = 171,329.58 : x
  2. Step 2: Convert to fraction form
    218,940.57/302,309.01 = 171,329.58/x
  3. Step 3: Cross multiply
    218,940.57x = 302,309.01 × 171,329.58
  4. Step 4: Simplify right side
    218,940.57x = 51,794,475,713.52
  5. Step 5: Solve for x
    x = 51,794,475,713.52/218,940.57
  6. Step 6: Final answer
    x = 236,568.65

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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.