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Finding the Fourth Proportional to 275,387.80, 379,894.62 and 179,950.36

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Solution

The fourth proportional to 275,387.80, 379,894.62 and 179,950.36 is: 248,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,387.80 : 379,894.62 = 179,950.36 : x
  2. Step 2: Convert to fraction form
    275,387.80/379,894.62 = 179,950.36/x
  3. Step 3: Cross multiply
    275,387.80x = 379,894.62 × 179,950.36
  4. Step 4: Simplify right side
    275,387.80x = 68,362,173,631.06
  5. Step 5: Solve for x
    x = 68,362,173,631.06/275,387.80
  6. Step 6: Final answer
    x = 248,239.66

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1.5x scale

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.