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Finding the Fourth Proportional to 326,825.54, 490,266.54 and 90,168.22

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Solution

The fourth proportional to 326,825.54, 490,266.54 and 90,168.22 is: 135,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,825.54 : 490,266.54 = 90,168.22 : x
  2. Step 2: Convert to fraction form
    326,825.54/490,266.54 = 90,168.22/x
  3. Step 3: Cross multiply
    326,825.54x = 490,266.54 × 90,168.22
  4. Step 4: Simplify right side
    326,825.54x = 44,206,461,237.36
  5. Step 5: Solve for x
    x = 44,206,461,237.36/326,825.54
  6. Step 6: Final answer
    x = 135,260.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.