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Finding the Fourth Proportional to 400,287.88, 552,536.10 and 230,589.64

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Solution

The fourth proportional to 400,287.88, 552,536.10 and 230,589.64 is: 318,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,287.88 : 552,536.10 = 230,589.64 : x
  2. Step 2: Convert to fraction form
    400,287.88/552,536.10 = 230,589.64/x
  3. Step 3: Cross multiply
    400,287.88x = 552,536.10 × 230,589.64
  4. Step 4: Simplify right side
    400,287.88x = 127,409,100,386.00
  5. Step 5: Solve for x
    x = 127,409,100,386.00/400,287.88
  6. Step 6: Final answer
    x = 318,293.68

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1.5x scale

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.