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Finding the Fourth Proportional to 299,790.36, 449,553.78 and 159,515.64

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Solution

The fourth proportional to 299,790.36, 449,553.78 and 159,515.64 is: 239,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,790.36 : 449,553.78 = 159,515.64 : x
  2. Step 2: Convert to fraction form
    299,790.36/449,553.78 = 159,515.64/x
  3. Step 3: Cross multiply
    299,790.36x = 449,553.78 × 159,515.64
  4. Step 4: Simplify right side
    299,790.36x = 71,710,858,931.12
  5. Step 5: Solve for x
    x = 71,710,858,931.12/299,790.36
  6. Step 6: Final answer
    x = 239,203.35

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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.