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Finding the Fourth Proportional to 221,467.60, 331,805.40 and 134,755.60

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Solution

The fourth proportional to 221,467.60, 331,805.40 and 134,755.60 is: 201,892.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,467.60 : 331,805.40 = 134,755.60 : x
  2. Step 2: Convert to fraction form
    221,467.60/331,805.40 = 134,755.60/x
  3. Step 3: Cross multiply
    221,467.60x = 331,805.40 × 134,755.60
  4. Step 4: Simplify right side
    221,467.60x = 44,712,635,760.24
  5. Step 5: Solve for x
    x = 44,712,635,760.24/221,467.60
  6. Step 6: Final answer
    x = 201,892.45

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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.