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Finding the Fourth Proportional to 231,327.84, 346,994.24 and 81,540.24

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Solution

The fourth proportional to 231,327.84, 346,994.24 and 81,540.24 is: 122,311.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,327.84 : 346,994.24 = 81,540.24 : x
  2. Step 2: Convert to fraction form
    231,327.84/346,994.24 = 81,540.24/x
  3. Step 3: Cross multiply
    231,327.84x = 346,994.24 × 81,540.24
  4. Step 4: Simplify right side
    231,327.84x = 28,293,993,608.22
  5. Step 5: Solve for x
    x = 28,293,993,608.22/231,327.84
  6. Step 6: Final answer
    x = 122,311.23

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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.