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Finding the Fourth Proportional to 344,940.78, 476,013.51 and 191,978.94

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Solution

The fourth proportional to 344,940.78, 476,013.51 and 191,978.94 is: 264,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,940.78 : 476,013.51 = 191,978.94 : x
  2. Step 2: Convert to fraction form
    344,940.78/476,013.51 = 191,978.94/x
  3. Step 3: Cross multiply
    344,940.78x = 476,013.51 × 191,978.94
  4. Step 4: Simplify right side
    344,940.78x = 91,384,569,075.48
  5. Step 5: Solve for x
    x = 91,384,569,075.48/344,940.78
  6. Step 6: Final answer
    x = 264,928.28

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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.