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Finding the Fourth Proportional to 299,219.06, 448,440.80 and 121,519.64

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Solution

The fourth proportional to 299,219.06, 448,440.80 and 121,519.64 is: 182,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,219.06 : 448,440.80 = 121,519.64 : x
  2. Step 2: Convert to fraction form
    299,219.06/448,440.80 = 121,519.64/x
  3. Step 3: Cross multiply
    299,219.06x = 448,440.80 × 121,519.64
  4. Step 4: Simplify right side
    299,219.06x = 54,494,364,881.11
  5. Step 5: Solve for x
    x = 54,494,364,881.11/299,219.06
  6. Step 6: Final answer
    x = 182,121.97

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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.