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Finding the Fourth Proportional to 449,393.36, 620,201.40 and 248,228.24

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Solution

The fourth proportional to 449,393.36, 620,201.40 and 248,228.24 is: 342,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,393.36 : 620,201.40 = 248,228.24 : x
  2. Step 2: Convert to fraction form
    449,393.36/620,201.40 = 248,228.24/x
  3. Step 3: Cross multiply
    449,393.36x = 620,201.40 × 248,228.24
  4. Step 4: Simplify right side
    449,393.36x = 153,951,501,967.54
  5. Step 5: Solve for x
    x = 153,951,501,967.54/449,393.36
  6. Step 6: Final answer
    x = 342,576.27

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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.