Home / 326,885.20-490,318.04-90,242.32

Finding the Fourth Proportional to 326,885.20, 490,318.04 and 90,242.32

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Solution

The fourth proportional to 326,885.20, 490,318.04 and 90,242.32 is: 135,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,885.20 : 490,318.04 = 90,242.32 : x
  2. Step 2: Convert to fraction form
    326,885.20/490,318.04 = 90,242.32/x
  3. Step 3: Cross multiply
    326,885.20x = 490,318.04 × 90,242.32
  4. Step 4: Simplify right side
    326,885.20x = 44,247,437,467.45
  5. Step 5: Solve for x
    x = 44,247,437,467.45/326,885.20
  6. Step 6: Final answer
    x = 135,360.79

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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.