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Finding the Fourth Proportional to 299,220.81, 448,443.42 and 121,521.39

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Solution

The fourth proportional to 299,220.81, 448,443.42 and 121,521.39 is: 182,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,220.81 : 448,443.42 = 121,521.39 : x
  2. Step 2: Convert to fraction form
    299,220.81/448,443.42 = 121,521.39/x
  3. Step 3: Cross multiply
    299,220.81x = 448,443.42 × 121,521.39
  4. Step 4: Simplify right side
    299,220.81x = 54,495,467,734.75
  5. Step 5: Solve for x
    x = 54,495,467,734.75/299,220.81
  6. Step 6: Final answer
    x = 182,124.59

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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.