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Finding the Fourth Proportional to 387,203.60, 580,344.60 and 162,563.60

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Solution

The fourth proportional to 387,203.60, 580,344.60 and 162,563.60 is: 243,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,203.60 : 580,344.60 = 162,563.60 : x
  2. Step 2: Convert to fraction form
    387,203.60/580,344.60 = 162,563.60/x
  3. Step 3: Cross multiply
    387,203.60x = 580,344.60 × 162,563.60
  4. Step 4: Simplify right side
    387,203.60x = 94,342,907,416.56
  5. Step 5: Solve for x
    x = 94,342,907,416.56/387,203.60
  6. Step 6: Final answer
    x = 243,651.94

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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.