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Finding the Fourth Proportional to 222,730.60, 334,128.30 and 72,945.40

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Solution

The fourth proportional to 222,730.60, 334,128.30 and 72,945.40 is: 109,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,730.60 : 334,128.30 = 72,945.40 : x
  2. Step 2: Convert to fraction form
    222,730.60/334,128.30 = 72,945.40/x
  3. Step 3: Cross multiply
    222,730.60x = 334,128.30 × 72,945.40
  4. Step 4: Simplify right side
    222,730.60x = 24,373,122,494.82
  5. Step 5: Solve for x
    x = 24,373,122,494.82/222,730.60
  6. Step 6: Final answer
    x = 109,428.71

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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.