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Finding the Fourth Proportional to 399,788.60, 599,464.20 and 162,863.60

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Solution

The fourth proportional to 399,788.60, 599,464.20 and 162,863.60 is: 244,206.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,788.60 : 599,464.20 = 162,863.60 : x
  2. Step 2: Convert to fraction form
    399,788.60/599,464.20 = 162,863.60/x
  3. Step 3: Cross multiply
    399,788.60x = 599,464.20 × 162,863.60
  4. Step 4: Simplify right side
    399,788.60x = 97,630,897,683.12
  5. Step 5: Solve for x
    x = 97,630,897,683.12/399,788.60
  6. Step 6: Final answer
    x = 244,206.31

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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.