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Finding the Fourth Proportional to 248,736.80, 372,968.40 and 169,940

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Solution

The fourth proportional to 248,736.80, 372,968.40 and 169,940 is: 254,816.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,736.80 : 372,968.40 = 169,940 : x
  2. Step 2: Convert to fraction form
    248,736.80/372,968.40 = 169,940/x
  3. Step 3: Cross multiply
    248,736.80x = 372,968.40 × 169,940
  4. Step 4: Simplify right side
    248,736.80x = 63,382,249,896.00
  5. Step 5: Solve for x
    x = 63,382,249,896.00/248,736.80
  6. Step 6: Final answer
    x = 254,816.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.