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Finding the Fourth Proportional to 400,958.25, 553,322.39 and 222,110.25

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Solution

The fourth proportional to 400,958.25, 553,322.39 and 222,110.25 is: 306,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,958.25 : 553,322.39 = 222,110.25 : x
  2. Step 2: Convert to fraction form
    400,958.25/553,322.39 = 222,110.25/x
  3. Step 3: Cross multiply
    400,958.25x = 553,322.39 × 222,110.25
  4. Step 4: Simplify right side
    400,958.25x = 122,898,573,262.95
  5. Step 5: Solve for x
    x = 122,898,573,262.95/400,958.25
  6. Step 6: Final answer
    x = 306,512.15

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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.