Home / 218,725.22-301,839.80-121,927.80

Finding the Fourth Proportional to 218,725.22, 301,839.80 and 121,927.80

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Solution

The fourth proportional to 218,725.22, 301,839.80 and 121,927.80 is: 168,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,725.22 : 301,839.80 = 121,927.80 : x
  2. Step 2: Convert to fraction form
    218,725.22/301,839.80 = 121,927.80/x
  3. Step 3: Cross multiply
    218,725.22x = 301,839.80 × 121,927.80
  4. Step 4: Simplify right side
    218,725.22x = 36,802,662,766.44
  5. Step 5: Solve for x
    x = 36,802,662,766.44/218,725.22
  6. Step 6: Final answer
    x = 168,259.80

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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.