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Finding the Fourth Proportional to 228,997.91, 315,792.09 and 210,895.62

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Solution

The fourth proportional to 228,997.91, 315,792.09 and 210,895.62 is: 290,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,997.91 : 315,792.09 = 210,895.62 : x
  2. Step 2: Convert to fraction form
    228,997.91/315,792.09 = 210,895.62/x
  3. Step 3: Cross multiply
    228,997.91x = 315,792.09 × 210,895.62
  4. Step 4: Simplify right side
    228,997.91x = 66,599,168,611.65
  5. Step 5: Solve for x
    x = 66,599,168,611.65/228,997.91
  6. Step 6: Final answer
    x = 290,828.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.