Home / 209,190.12-288,675.30-119,748.84

Finding the Fourth Proportional to 209,190.12, 288,675.30 and 119,748.84

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Solution

The fourth proportional to 209,190.12, 288,675.30 and 119,748.84 is: 165,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,190.12 : 288,675.30 = 119,748.84 : x
  2. Step 2: Convert to fraction form
    209,190.12/288,675.30 = 119,748.84/x
  3. Step 3: Cross multiply
    209,190.12x = 288,675.30 × 119,748.84
  4. Step 4: Simplify right side
    209,190.12x = 34,568,532,311.65
  5. Step 5: Solve for x
    x = 34,568,532,311.65/209,190.12
  6. Step 6: Final answer
    x = 165,249.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.