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Finding the Fourth Proportional to 299,367.48, 449,123.01 and 99,689.70

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Solution

The fourth proportional to 299,367.48, 449,123.01 and 99,689.70 is: 149,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,367.48 : 449,123.01 = 99,689.70 : x
  2. Step 2: Convert to fraction form
    299,367.48/449,123.01 = 99,689.70/x
  3. Step 3: Cross multiply
    299,367.48x = 449,123.01 × 99,689.70
  4. Step 4: Simplify right side
    299,367.48x = 44,772,938,130.00
  5. Step 5: Solve for x
    x = 44,772,938,130.00/299,367.48
  6. Step 6: Final answer
    x = 149,558.46

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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.