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Finding the Fourth Proportional to 299,982.40, 449,973.60 and 297,908.80

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Solution

The fourth proportional to 299,982.40, 449,973.60 and 297,908.80 is: 446,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,982.40 : 449,973.60 = 297,908.80 : x
  2. Step 2: Convert to fraction form
    299,982.40/449,973.60 = 297,908.80/x
  3. Step 3: Cross multiply
    299,982.40x = 449,973.60 × 297,908.80
  4. Step 4: Simplify right side
    299,982.40x = 134,051,095,207.68
  5. Step 5: Solve for x
    x = 134,051,095,207.68/299,982.40
  6. Step 6: Final answer
    x = 446,863.20

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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.