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Finding the Fourth Proportional to 289,571.46, 399,608.34 and 162,247.97

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Solution

The fourth proportional to 289,571.46, 399,608.34 and 162,247.97 is: 223,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,571.46 : 399,608.34 = 162,247.97 : x
  2. Step 2: Convert to fraction form
    289,571.46/399,608.34 = 162,247.97/x
  3. Step 3: Cross multiply
    289,571.46x = 399,608.34 × 162,247.97
  4. Step 4: Simplify right side
    289,571.46x = 64,835,639,962.03
  5. Step 5: Solve for x
    x = 64,835,639,962.03/289,571.46
  6. Step 6: Final answer
    x = 223,902.04

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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.