Home / 389,081.18-583,452.26-206,672.06

Finding the Fourth Proportional to 389,081.18, 583,452.26 and 206,672.06

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Solution

The fourth proportional to 389,081.18, 583,452.26 and 206,672.06 is: 309,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,081.18 : 583,452.26 = 206,672.06 : x
  2. Step 2: Convert to fraction form
    389,081.18/583,452.26 = 206,672.06/x
  3. Step 3: Cross multiply
    389,081.18x = 583,452.26 × 206,672.06
  4. Step 4: Simplify right side
    389,081.18x = 120,583,280,485.86
  5. Step 5: Solve for x
    x = 120,583,280,485.86/389,081.18
  6. Step 6: Final answer
    x = 309,918.05

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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.