Home / 259,066.26-388,651.74-109,306.89

Finding the Fourth Proportional to 259,066.26, 388,651.74 and 109,306.89

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Solution

The fourth proportional to 259,066.26, 388,651.74 and 109,306.89 is: 163,982.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,066.26 : 388,651.74 = 109,306.89 : x
  2. Step 2: Convert to fraction form
    259,066.26/388,651.74 = 109,306.89/x
  3. Step 3: Cross multiply
    259,066.26x = 388,651.74 × 109,306.89
  4. Step 4: Simplify right side
    259,066.26x = 42,482,312,992.49
  5. Step 5: Solve for x
    x = 42,482,312,992.49/259,066.26
  6. Step 6: Final answer
    x = 163,982.42

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1.5x scale

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.