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Finding the Fourth Proportional to 228,550.80, 343,020.60 and 102,385.20

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Solution

The fourth proportional to 228,550.80, 343,020.60 and 102,385.20 is: 153,664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,550.80 : 343,020.60 = 102,385.20 : x
  2. Step 2: Convert to fraction form
    228,550.80/343,020.60 = 102,385.20/x
  3. Step 3: Cross multiply
    228,550.80x = 343,020.60 × 102,385.20
  4. Step 4: Simplify right side
    228,550.80x = 35,120,232,735.12
  5. Step 5: Solve for x
    x = 35,120,232,735.12/228,550.80
  6. Step 6: Final answer
    x = 153,664.89

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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.