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Finding the Fourth Proportional to 299,402.80, 448,499.40 and 186,737.20

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Solution

The fourth proportional to 299,402.80, 448,499.40 and 186,737.20 is: 279,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,402.80 : 448,499.40 = 186,737.20 : x
  2. Step 2: Convert to fraction form
    299,402.80/448,499.40 = 186,737.20/x
  3. Step 3: Cross multiply
    299,402.80x = 448,499.40 × 186,737.20
  4. Step 4: Simplify right side
    299,402.80x = 83,751,522,157.68
  5. Step 5: Solve for x
    x = 83,751,522,157.68/299,402.80
  6. Step 6: Final answer
    x = 279,728.59

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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.