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Finding the Fourth Proportional to 304,639.20, 456,267.60 and 192,664.80

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Solution

The fourth proportional to 304,639.20, 456,267.60 and 192,664.80 is: 288,560.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,639.20 : 456,267.60 = 192,664.80 : x
  2. Step 2: Convert to fraction form
    304,639.20/456,267.60 = 192,664.80/x
  3. Step 3: Cross multiply
    304,639.20x = 456,267.60 × 192,664.80
  4. Step 4: Simplify right side
    304,639.20x = 87,906,705,900.48
  5. Step 5: Solve for x
    x = 87,906,705,900.48/304,639.20
  6. Step 6: Final answer
    x = 288,560.06

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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.