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Finding the Fourth Proportional to 308,936, 426,338.16 and 174,800

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Solution

The fourth proportional to 308,936, 426,338.16 and 174,800 is: 241,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,936 : 426,338.16 = 174,800 : x
  2. Step 2: Convert to fraction form
    308,936/426,338.16 = 174,800/x
  3. Step 3: Cross multiply
    308,936x = 426,338.16 × 174,800
  4. Step 4: Simplify right side
    308,936x = 74,523,910,368
  5. Step 5: Solve for x
    x = 74,523,910,368/308,936
  6. Step 6: Final answer
    x = 241,227.67

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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.