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Finding the Fourth Proportional to 299,411.55, 449,117.33 and 269,887.05

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Solution

The fourth proportional to 299,411.55, 449,117.33 and 269,887.05 is: 404,830.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,411.55 : 449,117.33 = 269,887.05 : x
  2. Step 2: Convert to fraction form
    299,411.55/449,117.33 = 269,887.05/x
  3. Step 3: Cross multiply
    299,411.55x = 449,117.33 × 269,887.05
  4. Step 4: Simplify right side
    299,411.55x = 121,210,949,948.14
  5. Step 5: Solve for x
    x = 121,210,949,948.14/299,411.55
  6. Step 6: Final answer
    x = 404,830.58

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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.