Home / 222,209.28-306,649.38-121,607.28

Finding the Fourth Proportional to 222,209.28, 306,649.38 and 121,607.28

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Solution

The fourth proportional to 222,209.28, 306,649.38 and 121,607.28 is: 167,818.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,209.28 : 306,649.38 = 121,607.28 : x
  2. Step 2: Convert to fraction form
    222,209.28/306,649.38 = 121,607.28/x
  3. Step 3: Cross multiply
    222,209.28x = 306,649.38 × 121,607.28
  4. Step 4: Simplify right side
    222,209.28x = 37,290,797,015.49
  5. Step 5: Solve for x
    x = 37,290,797,015.49/222,209.28
  6. Step 6: Final answer
    x = 167,818.36

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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.