Home / 400,720.26-552,993.96-230,965.32

Finding the Fourth Proportional to 400,720.26, 552,993.96 and 230,965.32

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Solution

The fourth proportional to 400,720.26, 552,993.96 and 230,965.32 is: 318,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,720.26 : 552,993.96 = 230,965.32 : x
  2. Step 2: Convert to fraction form
    400,720.26/552,993.96 = 230,965.32/x
  3. Step 3: Cross multiply
    400,720.26x = 552,993.96 × 230,965.32
  4. Step 4: Simplify right side
    400,720.26x = 127,722,426,929.47
  5. Step 5: Solve for x
    x = 127,722,426,929.47/400,720.26
  6. Step 6: Final answer
    x = 318,732.14

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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.