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Finding the Fourth Proportional to 308,968.70, 432,851.43 and 308,968.70

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Solution

The fourth proportional to 308,968.70, 432,851.43 and 308,968.70 is: 432,851.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,968.70 : 432,851.43 = 308,968.70 : x
  2. Step 2: Convert to fraction form
    308,968.70/432,851.43 = 308,968.70/x
  3. Step 3: Cross multiply
    308,968.70x = 432,851.43 × 308,968.70
  4. Step 4: Simplify right side
    308,968.70x = 133,737,543,620.24
  5. Step 5: Solve for x
    x = 133,737,543,620.24/308,968.70
  6. Step 6: Final answer
    x = 432,851.43

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.