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Finding the Fourth Proportional to 228,234.40, 342,351.60 and 211,175.80

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Solution

The fourth proportional to 228,234.40, 342,351.60 and 211,175.80 is: 316,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,234.40 : 342,351.60 = 211,175.80 : x
  2. Step 2: Convert to fraction form
    228,234.40/342,351.60 = 211,175.80/x
  3. Step 3: Cross multiply
    228,234.40x = 342,351.60 × 211,175.80
  4. Step 4: Simplify right side
    228,234.40x = 72,296,373,011.28
  5. Step 5: Solve for x
    x = 72,296,373,011.28/228,234.40
  6. Step 6: Final answer
    x = 316,763.70

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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.