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Finding the Fourth Proportional to 299,685.55, 449,618.52 and 89,323.46

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Solution

The fourth proportional to 299,685.55, 449,618.52 and 89,323.46 is: 134,012.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,685.55 : 449,618.52 = 89,323.46 : x
  2. Step 2: Convert to fraction form
    299,685.55/449,618.52 = 89,323.46/x
  3. Step 3: Cross multiply
    299,685.55x = 449,618.52 × 89,323.46
  4. Step 4: Simplify right side
    299,685.55x = 40,161,481,886.48
  5. Step 5: Solve for x
    x = 40,161,481,886.48/299,685.55
  6. Step 6: Final answer
    x = 134,012.07

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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.