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Finding the Fourth Proportional to 326,982.83, 490,502.72 and 90,325.73

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Solution

The fourth proportional to 326,982.83, 490,502.72 and 90,325.73 is: 135,496.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,982.83 : 490,502.72 = 90,325.73 : x
  2. Step 2: Convert to fraction form
    326,982.83/490,502.72 = 90,325.73/x
  3. Step 3: Cross multiply
    326,982.83x = 490,502.72 × 90,325.73
  4. Step 4: Simplify right side
    326,982.83x = 44,305,017,703.06
  5. Step 5: Solve for x
    x = 44,305,017,703.06/326,982.83
  6. Step 6: Final answer
    x = 135,496.47

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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.