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Finding the Fourth Proportional to 299,382.90, 448,977.15 and 99,669.30

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Solution

The fourth proportional to 299,382.90, 448,977.15 and 99,669.30 is: 149,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,382.90 : 448,977.15 = 99,669.30 : x
  2. Step 2: Convert to fraction form
    299,382.90/448,977.15 = 99,669.30/x
  3. Step 3: Cross multiply
    299,382.90x = 448,977.15 × 99,669.30
  4. Step 4: Simplify right side
    299,382.90x = 44,749,238,256.50
  5. Step 5: Solve for x
    x = 44,749,238,256.50/299,382.90
  6. Step 6: Final answer
    x = 149,471.59

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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.