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Finding the Fourth Proportional to 222,854.40, 335,059.20 and 218,188.80

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Solution

The fourth proportional to 222,854.40, 335,059.20 and 218,188.80 is: 328,044.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,854.40 : 335,059.20 = 218,188.80 : x
  2. Step 2: Convert to fraction form
    222,854.40/335,059.20 = 218,188.80/x
  3. Step 3: Cross multiply
    222,854.40x = 335,059.20 × 218,188.80
  4. Step 4: Simplify right side
    222,854.40x = 73,106,164,776.96
  5. Step 5: Solve for x
    x = 73,106,164,776.96/222,854.40
  6. Step 6: Final answer
    x = 328,044.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.