Home / 228,640.20-342,960.30-204,145.80

Finding the Fourth Proportional to 228,640.20, 342,960.30 and 204,145.80

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Solution

The fourth proportional to 228,640.20, 342,960.30 and 204,145.80 is: 306,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,640.20 : 342,960.30 = 204,145.80 : x
  2. Step 2: Convert to fraction form
    228,640.20/342,960.30 = 204,145.80/x
  3. Step 3: Cross multiply
    228,640.20x = 342,960.30 × 204,145.80
  4. Step 4: Simplify right side
    228,640.20x = 70,013,904,811.74
  5. Step 5: Solve for x
    x = 70,013,904,811.74/228,640.20
  6. Step 6: Final answer
    x = 306,218.70

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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.