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Finding the Fourth Proportional to 299,479.59, 449,069.54 and 99,730.35

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Solution

The fourth proportional to 299,479.59, 449,069.54 and 99,730.35 is: 149,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,479.59 : 449,069.54 = 99,730.35 : x
  2. Step 2: Convert to fraction form
    299,479.59/449,069.54 = 99,730.35/x
  3. Step 3: Cross multiply
    299,479.59x = 449,069.54 × 99,730.35
  4. Step 4: Simplify right side
    299,479.59x = 44,785,861,899.89
  5. Step 5: Solve for x
    x = 44,785,861,899.89/299,479.59
  6. Step 6: Final answer
    x = 149,545.62

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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.