Home / 222,374.11-306,872.61-120,398.76

Finding the Fourth Proportional to 222,374.11, 306,872.61 and 120,398.76

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Solution

The fourth proportional to 222,374.11, 306,872.61 and 120,398.76 is: 166,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,374.11 : 306,872.61 = 120,398.76 : x
  2. Step 2: Convert to fraction form
    222,374.11/306,872.61 = 120,398.76/x
  3. Step 3: Cross multiply
    222,374.11x = 306,872.61 × 120,398.76
  4. Step 4: Simplify right side
    222,374.11x = 36,947,081,721.96
  5. Step 5: Solve for x
    x = 36,947,081,721.96/222,374.11
  6. Step 6: Final answer
    x = 166,148.31

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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.