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Finding the Fourth Proportional to 228,512.80, 342,769.20 and 226,957.60

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Solution

The fourth proportional to 228,512.80, 342,769.20 and 226,957.60 is: 340,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,512.80 : 342,769.20 = 226,957.60 : x
  2. Step 2: Convert to fraction form
    228,512.80/342,769.20 = 226,957.60/x
  3. Step 3: Cross multiply
    228,512.80x = 342,769.20 × 226,957.60
  4. Step 4: Simplify right side
    228,512.80x = 77,794,074,985.92
  5. Step 5: Solve for x
    x = 77,794,074,985.92/228,512.80
  6. Step 6: Final answer
    x = 340,436.40

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1.5x scale

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.