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Finding the Fourth Proportional to 332,652.80, 498,979.20 and 258,003.20

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Solution

The fourth proportional to 332,652.80, 498,979.20 and 258,003.20 is: 387,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,652.80 : 498,979.20 = 258,003.20 : x
  2. Step 2: Convert to fraction form
    332,652.80/498,979.20 = 258,003.20/x
  3. Step 3: Cross multiply
    332,652.80x = 498,979.20 × 258,003.20
  4. Step 4: Simplify right side
    332,652.80x = 128,738,230,333.44
  5. Step 5: Solve for x
    x = 128,738,230,333.44/332,652.80
  6. Step 6: Final answer
    x = 387,004.80

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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.