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Finding the Fourth Proportional to 218,673.92, 301,794.59 and 121,886.62

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Solution

The fourth proportional to 218,673.92, 301,794.59 and 121,886.62 is: 168,217.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,673.92 : 301,794.59 = 121,886.62 : x
  2. Step 2: Convert to fraction form
    218,673.92/301,794.59 = 121,886.62/x
  3. Step 3: Cross multiply
    218,673.92x = 301,794.59 × 121,886.62
  4. Step 4: Simplify right side
    218,673.92x = 36,784,722,059.62
  5. Step 5: Solve for x
    x = 36,784,722,059.62/218,673.92
  6. Step 6: Final answer
    x = 168,217.23

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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.