Home / 326,841.30-490,290.20-90,183.98

Finding the Fourth Proportional to 326,841.30, 490,290.20 and 90,183.98

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Solution

The fourth proportional to 326,841.30, 490,290.20 and 90,183.98 is: 135,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,841.30 : 490,290.20 = 90,183.98 : x
  2. Step 2: Convert to fraction form
    326,841.30/490,290.20 = 90,183.98/x
  3. Step 3: Cross multiply
    326,841.30x = 490,290.20 × 90,183.98
  4. Step 4: Simplify right side
    326,841.30x = 44,216,323,084.46
  5. Step 5: Solve for x
    x = 44,216,323,084.46/326,841.30
  6. Step 6: Final answer
    x = 135,283.77

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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.