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Finding the Fourth Proportional to 299,336.90, 448,908.15 and 99,623.30

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Solution

The fourth proportional to 299,336.90, 448,908.15 and 99,623.30 is: 149,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,336.90 : 448,908.15 = 99,623.30 : x
  2. Step 2: Convert to fraction form
    299,336.90/448,908.15 = 99,623.30/x
  3. Step 3: Cross multiply
    299,336.90x = 448,908.15 × 99,623.30
  4. Step 4: Simplify right side
    299,336.90x = 44,721,711,299.90
  5. Step 5: Solve for x
    x = 44,721,711,299.90/299,336.90
  6. Step 6: Final answer
    x = 149,402.60

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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.