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Finding the Fourth Proportional to 326,078.48, 449,987.88 and 180,906.28

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Solution

The fourth proportional to 326,078.48, 449,987.88 and 180,906.28 is: 249,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,078.48 : 449,987.88 = 180,906.28 : x
  2. Step 2: Convert to fraction form
    326,078.48/449,987.88 = 180,906.28/x
  3. Step 3: Cross multiply
    326,078.48x = 449,987.88 × 180,906.28
  4. Step 4: Simplify right side
    326,078.48x = 81,405,633,415.89
  5. Step 5: Solve for x
    x = 81,405,633,415.89/326,078.48
  6. Step 6: Final answer
    x = 249,650.44

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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.