Home / 222,229.48-306,684.42-121,628.20

Finding the Fourth Proportional to 222,229.48, 306,684.42 and 121,628.20

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Solution

The fourth proportional to 222,229.48, 306,684.42 and 121,628.20 is: 167,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,229.48 : 306,684.42 = 121,628.20 : x
  2. Step 2: Convert to fraction form
    222,229.48/306,684.42 = 121,628.20/x
  3. Step 3: Cross multiply
    222,229.48x = 306,684.42 × 121,628.20
  4. Step 4: Simplify right side
    222,229.48x = 37,301,473,972.64
  5. Step 5: Solve for x
    x = 37,301,473,972.64/222,229.48
  6. Step 6: Final answer
    x = 167,851.15

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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.