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Finding the Fourth Proportional to 228,997.16, 315,791.06 and 210,894.87

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Solution

The fourth proportional to 228,997.16, 315,791.06 and 210,894.87 is: 290,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,997.16 : 315,791.06 = 210,894.87 : x
  2. Step 2: Convert to fraction form
    228,997.16/315,791.06 = 210,894.87/x
  3. Step 3: Cross multiply
    228,997.16x = 315,791.06 × 210,894.87
  4. Step 4: Simplify right side
    228,997.16x = 66,598,713,491.39
  5. Step 5: Solve for x
    x = 66,598,713,491.39/228,997.16
  6. Step 6: Final answer
    x = 290,827.69

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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.