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Finding the Fourth Proportional to 299,888.76, 449,684.82 and 100,140.60

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Solution

The fourth proportional to 299,888.76, 449,684.82 and 100,140.60 is: 150,161.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,888.76 : 449,684.82 = 100,140.60 : x
  2. Step 2: Convert to fraction form
    299,888.76/449,684.82 = 100,140.60/x
  3. Step 3: Cross multiply
    299,888.76x = 449,684.82 × 100,140.60
  4. Step 4: Simplify right side
    299,888.76x = 45,031,707,685.69
  5. Step 5: Solve for x
    x = 45,031,707,685.69/299,888.76
  6. Step 6: Final answer
    x = 150,161.37

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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.