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Finding the Fourth Proportional to 379,626.63, 569,224.28 and 154,723.65

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Solution

The fourth proportional to 379,626.63, 569,224.28 and 154,723.65 is: 231,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,626.63 : 569,224.28 = 154,723.65 : x
  2. Step 2: Convert to fraction form
    379,626.63/569,224.28 = 154,723.65/x
  3. Step 3: Cross multiply
    379,626.63x = 569,224.28 × 154,723.65
  4. Step 4: Simplify right side
    379,626.63x = 88,072,457,496.60
  5. Step 5: Solve for x
    x = 88,072,457,496.60/379,626.63
  6. Step 6: Final answer
    x = 231,997.57

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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.