Home / 326,954.28-490,421.70-90,311.16

Finding the Fourth Proportional to 326,954.28, 490,421.70 and 90,311.16

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Solution

The fourth proportional to 326,954.28, 490,421.70 and 90,311.16 is: 135,464.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,954.28 : 490,421.70 = 90,311.16 : x
  2. Step 2: Convert to fraction form
    326,954.28/490,421.70 = 90,311.16/x
  3. Step 3: Cross multiply
    326,954.28x = 490,421.70 × 90,311.16
  4. Step 4: Simplify right side
    326,954.28x = 44,290,552,616.17
  5. Step 5: Solve for x
    x = 44,290,552,616.17/326,954.28
  6. Step 6: Final answer
    x = 135,464.06

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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.