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Finding the Fourth Proportional to 352,558.40, 528,837.60 and 299,414.30

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Solution

The fourth proportional to 352,558.40, 528,837.60 and 299,414.30 is: 449,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,558.40 : 528,837.60 = 299,414.30 : x
  2. Step 2: Convert to fraction form
    352,558.40/528,837.60 = 299,414.30/x
  3. Step 3: Cross multiply
    352,558.40x = 528,837.60 × 299,414.30
  4. Step 4: Simplify right side
    352,558.40x = 158,341,539,817.68
  5. Step 5: Solve for x
    x = 158,341,539,817.68/352,558.40
  6. Step 6: Final answer
    x = 449,121.45

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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.