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Finding the Fourth Proportional to 221,267.60, 331,505.40 and 134,555.60

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Solution

The fourth proportional to 221,267.60, 331,505.40 and 134,555.60 is: 201,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,267.60 : 331,505.40 = 134,555.60 : x
  2. Step 2: Convert to fraction form
    221,267.60/331,505.40 = 134,555.60/x
  3. Step 3: Cross multiply
    221,267.60x = 331,505.40 × 134,555.60
  4. Step 4: Simplify right side
    221,267.60x = 44,605,908,000.24
  5. Step 5: Solve for x
    x = 44,605,908,000.24/221,267.60
  6. Step 6: Final answer
    x = 201,592.59

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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.