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Finding the Fourth Proportional to 222,781.51, 334,204.05 and 72,989.78

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Solution

The fourth proportional to 222,781.51, 334,204.05 and 72,989.78 is: 109,495.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,781.51 : 334,204.05 = 72,989.78 : x
  2. Step 2: Convert to fraction form
    222,781.51/334,204.05 = 72,989.78/x
  3. Step 3: Cross multiply
    222,781.51x = 334,204.05 × 72,989.78
  4. Step 4: Simplify right side
    222,781.51x = 24,393,481,301.86
  5. Step 5: Solve for x
    x = 24,393,481,301.86/222,781.51
  6. Step 6: Final answer
    x = 109,495.09

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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.