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Finding the Fourth Proportional to 274,812.40, 379,051.40 and 193,313.44

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Solution

The fourth proportional to 274,812.40, 379,051.40 and 193,313.44 is: 266,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,812.40 : 379,051.40 = 193,313.44 : x
  2. Step 2: Convert to fraction form
    274,812.40/379,051.40 = 193,313.44/x
  3. Step 3: Cross multiply
    274,812.40x = 379,051.40 × 193,313.44
  4. Step 4: Simplify right side
    274,812.40x = 73,275,730,070.82
  5. Step 5: Solve for x
    x = 73,275,730,070.82/274,812.40
  6. Step 6: Final answer
    x = 266,639.10

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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.