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Finding the Fourth Proportional to 300,222.60, 449,240.40 and 221,490.60

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Solution

The fourth proportional to 300,222.60, 449,240.40 and 221,490.60 is: 331,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,222.60 : 449,240.40 = 221,490.60 : x
  2. Step 2: Convert to fraction form
    300,222.60/449,240.40 = 221,490.60/x
  3. Step 3: Cross multiply
    300,222.60x = 449,240.40 × 221,490.60
  4. Step 4: Simplify right side
    300,222.60x = 99,502,525,740.24
  5. Step 5: Solve for x
    x = 99,502,525,740.24/300,222.60
  6. Step 6: Final answer
    x = 331,429.17

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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.