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Finding the Fourth Proportional to 299,374.40, 449,061.60 and 271,726.40

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Solution

The fourth proportional to 299,374.40, 449,061.60 and 271,726.40 is: 407,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,374.40 : 449,061.60 = 271,726.40 : x
  2. Step 2: Convert to fraction form
    299,374.40/449,061.60 = 271,726.40/x
  3. Step 3: Cross multiply
    299,374.40x = 449,061.60 × 271,726.40
  4. Step 4: Simplify right side
    299,374.40x = 122,021,891,946.24
  5. Step 5: Solve for x
    x = 122,021,891,946.24/299,374.40
  6. Step 6: Final answer
    x = 407,589.60

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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.