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Finding the Fourth Proportional to 245,335.20, 368,002.80 and 203,863.20

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Solution

The fourth proportional to 245,335.20, 368,002.80 and 203,863.20 is: 305,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,335.20 : 368,002.80 = 203,863.20 : x
  2. Step 2: Convert to fraction form
    245,335.20/368,002.80 = 203,863.20/x
  3. Step 3: Cross multiply
    245,335.20x = 368,002.80 × 203,863.20
  4. Step 4: Simplify right side
    245,335.20x = 75,022,228,416.96
  5. Step 5: Solve for x
    x = 75,022,228,416.96/245,335.20
  6. Step 6: Final answer
    x = 305,794.80

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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.