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Finding the Fourth Proportional to 248,179.68, 372,128.28 and 169,389.36

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Solution

The fourth proportional to 248,179.68, 372,128.28 and 169,389.36 is: 253,987.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,179.68 : 372,128.28 = 169,389.36 : x
  2. Step 2: Convert to fraction form
    248,179.68/372,128.28 = 169,389.36/x
  3. Step 3: Cross multiply
    248,179.68x = 372,128.28 × 169,389.36
  4. Step 4: Simplify right side
    248,179.68x = 63,034,571,187.10
  5. Step 5: Solve for x
    x = 63,034,571,187.10/248,179.68
  6. Step 6: Final answer
    x = 253,987.64

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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.