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Finding the Fourth Proportional to 389,520.60, 584,499.60 and 164,842.80

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Solution

The fourth proportional to 389,520.60, 584,499.60 and 164,842.80 is: 247,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,520.60 : 584,499.60 = 164,842.80 : x
  2. Step 2: Convert to fraction form
    389,520.60/584,499.60 = 164,842.80/x
  3. Step 3: Cross multiply
    389,520.60x = 584,499.60 × 164,842.80
  4. Step 4: Simplify right side
    389,520.60x = 96,350,550,662.88
  5. Step 5: Solve for x
    x = 96,350,550,662.88/389,520.60
  6. Step 6: Final answer
    x = 247,356.75

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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.