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Finding the Fourth Proportional to 299,859.08, 449,862.44 and 211,285.56

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Solution

The fourth proportional to 299,859.08, 449,862.44 and 211,285.56 is: 316,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,859.08 : 449,862.44 = 211,285.56 : x
  2. Step 2: Convert to fraction form
    299,859.08/449,862.44 = 211,285.56/x
  3. Step 3: Cross multiply
    299,859.08x = 449,862.44 × 211,285.56
  4. Step 4: Simplify right side
    299,859.08x = 95,049,437,558.37
  5. Step 5: Solve for x
    x = 95,049,437,558.37/299,859.08
  6. Step 6: Final answer
    x = 316,980.35

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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.