Home / 393,985.48-543,494.33-248,739.03

Finding the Fourth Proportional to 393,985.48, 543,494.33 and 248,739.03

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Solution

The fourth proportional to 393,985.48, 543,494.33 and 248,739.03 is: 343,130.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,985.48 : 543,494.33 = 248,739.03 : x
  2. Step 2: Convert to fraction form
    393,985.48/543,494.33 = 248,739.03/x
  3. Step 3: Cross multiply
    393,985.48x = 543,494.33 × 248,739.03
  4. Step 4: Simplify right side
    393,985.48x = 135,188,252,558.28
  5. Step 5: Solve for x
    x = 135,188,252,558.28/393,985.48
  6. Step 6: Final answer
    x = 343,130.04

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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.