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Finding the Fourth Proportional to 222,725.60, 334,120.80 and 72,940.40

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Solution

The fourth proportional to 222,725.60, 334,120.80 and 72,940.40 is: 109,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,725.60 : 334,120.80 = 72,940.40 : x
  2. Step 2: Convert to fraction form
    222,725.60/334,120.80 = 72,940.40/x
  3. Step 3: Cross multiply
    222,725.60x = 334,120.80 × 72,940.40
  4. Step 4: Simplify right side
    222,725.60x = 24,370,904,800.32
  5. Step 5: Solve for x
    x = 24,370,904,800.32/222,725.60
  6. Step 6: Final answer
    x = 109,421.21

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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.