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Finding the Fourth Proportional to 379,440.74, 523,635.74 and 207,369.36

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Solution

The fourth proportional to 379,440.74, 523,635.74 and 207,369.36 is: 286,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,440.74 : 523,635.74 = 207,369.36 : x
  2. Step 2: Convert to fraction form
    379,440.74/523,635.74 = 207,369.36/x
  3. Step 3: Cross multiply
    379,440.74x = 523,635.74 × 207,369.36
  4. Step 4: Simplify right side
    379,440.74x = 108,586,007,240.08
  5. Step 5: Solve for x
    x = 108,586,007,240.08/379,440.74
  6. Step 6: Final answer
    x = 286,173.83

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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.