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Finding the Fourth Proportional to 299,337.60, 449,006.40 and 260,846.40

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Solution

The fourth proportional to 299,337.60, 449,006.40 and 260,846.40 is: 391,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,337.60 : 449,006.40 = 260,846.40 : x
  2. Step 2: Convert to fraction form
    299,337.60/449,006.40 = 260,846.40/x
  3. Step 3: Cross multiply
    299,337.60x = 449,006.40 × 260,846.40
  4. Step 4: Simplify right side
    299,337.60x = 117,121,703,016.96
  5. Step 5: Solve for x
    x = 117,121,703,016.96/299,337.60
  6. Step 6: Final answer
    x = 391,269.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.