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Finding the Fourth Proportional to 248,899.25, 343,480.85 and 135,722.00

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Solution

The fourth proportional to 248,899.25, 343,480.85 and 135,722.00 is: 187,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,899.25 : 343,480.85 = 135,722.00 : x
  2. Step 2: Convert to fraction form
    248,899.25/343,480.85 = 135,722.00/x
  3. Step 3: Cross multiply
    248,899.25x = 343,480.85 × 135,722.00
  4. Step 4: Simplify right side
    248,899.25x = 46,617,907,444.11
  5. Step 5: Solve for x
    x = 46,617,907,444.11/248,899.25
  6. Step 6: Final answer
    x = 187,296.30

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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.