Home / 222,179.28-306,615.12-121,577.28

Finding the Fourth Proportional to 222,179.28, 306,615.12 and 121,577.28

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Solution

The fourth proportional to 222,179.28, 306,615.12 and 121,577.28 is: 167,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,179.28 : 306,615.12 = 121,577.28 : x
  2. Step 2: Convert to fraction form
    222,179.28/306,615.12 = 121,577.28/x
  3. Step 3: Cross multiply
    222,179.28x = 306,615.12 × 121,577.28
  4. Step 4: Simplify right side
    222,179.28x = 37,277,432,296.47
  5. Step 5: Solve for x
    x = 37,277,432,296.47/222,179.28
  6. Step 6: Final answer
    x = 167,780.87

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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.