Home / 222,460.16-306,999.20-121,851.84

Finding the Fourth Proportional to 222,460.16, 306,999.20 and 121,851.84

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Solution

The fourth proportional to 222,460.16, 306,999.20 and 121,851.84 is: 168,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,460.16 : 306,999.20 = 121,851.84 : x
  2. Step 2: Convert to fraction form
    222,460.16/306,999.20 = 121,851.84/x
  3. Step 3: Cross multiply
    222,460.16x = 306,999.20 × 121,851.84
  4. Step 4: Simplify right side
    222,460.16x = 37,408,417,398.53
  5. Step 5: Solve for x
    x = 37,408,417,398.53/222,460.16
  6. Step 6: Final answer
    x = 168,157.83

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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.