Home / 209,206.12-288,697.38-119,764.84

Finding the Fourth Proportional to 209,206.12, 288,697.38 and 119,764.84

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Solution

The fourth proportional to 209,206.12, 288,697.38 and 119,764.84 is: 165,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,206.12 : 288,697.38 = 119,764.84 : x
  2. Step 2: Convert to fraction form
    209,206.12/288,697.38 = 119,764.84/x
  3. Step 3: Cross multiply
    209,206.12x = 288,697.38 × 119,764.84
  4. Step 4: Simplify right side
    209,206.12x = 34,575,795,524.12
  5. Step 5: Solve for x
    x = 34,575,795,524.12/209,206.12
  6. Step 6: Final answer
    x = 165,271.43

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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.