Home / 326,977.25-490,465.22-90,319.23

Finding the Fourth Proportional to 326,977.25, 490,465.22 and 90,319.23

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Solution

The fourth proportional to 326,977.25, 490,465.22 and 90,319.23 is: 135,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,977.25 : 490,465.22 = 90,319.23 : x
  2. Step 2: Convert to fraction form
    326,977.25/490,465.22 = 90,319.23/x
  3. Step 3: Cross multiply
    326,977.25x = 490,465.22 × 90,319.23
  4. Step 4: Simplify right side
    326,977.25x = 44,298,440,560.58
  5. Step 5: Solve for x
    x = 44,298,440,560.58/326,977.25
  6. Step 6: Final answer
    x = 135,478.66

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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.