Home / 259,868.03-358,962.05-209,072.12

Finding the Fourth Proportional to 259,868.03, 358,962.05 and 209,072.12

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Solution

The fourth proportional to 259,868.03, 358,962.05 and 209,072.12 is: 288,796.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,868.03 : 358,962.05 = 209,072.12 : x
  2. Step 2: Convert to fraction form
    259,868.03/358,962.05 = 209,072.12/x
  3. Step 3: Cross multiply
    259,868.03x = 358,962.05 × 209,072.12
  4. Step 4: Simplify right side
    259,868.03x = 75,048,956,793.05
  5. Step 5: Solve for x
    x = 75,048,956,793.05/259,868.03
  6. Step 6: Final answer
    x = 288,796.42

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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.