Home / 222,741.60-305,679.12-221,166.96

Finding the Fourth Proportional to 222,741.60, 305,679.12 and 221,166.96

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Solution

The fourth proportional to 222,741.60, 305,679.12 and 221,166.96 is: 303,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,741.60 : 305,679.12 = 221,166.96 : x
  2. Step 2: Convert to fraction form
    222,741.60/305,679.12 = 221,166.96/x
  3. Step 3: Cross multiply
    222,741.60x = 305,679.12 × 221,166.96
  4. Step 4: Simplify right side
    222,741.60x = 67,606,121,705.88
  5. Step 5: Solve for x
    x = 67,606,121,705.88/222,741.60
  6. Step 6: Final answer
    x = 303,518.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.