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Finding the Fourth Proportional to 400,448.40, 552,644.46 and 230,679.60

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Solution

The fourth proportional to 400,448.40, 552,644.46 and 230,679.60 is: 318,352.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,448.40 : 552,644.46 = 230,679.60 : x
  2. Step 2: Convert to fraction form
    400,448.40/552,644.46 = 230,679.60/x
  3. Step 3: Cross multiply
    400,448.40x = 552,644.46 × 230,679.60
  4. Step 4: Simplify right side
    400,448.40x = 127,483,802,975.02
  5. Step 5: Solve for x
    x = 127,483,802,975.02/400,448.40
  6. Step 6: Final answer
    x = 318,352.63

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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.