Home / 318,584.08-477,608.28-213,081.04

Finding the Fourth Proportional to 318,584.08, 477,608.28 and 213,081.04

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Solution

The fourth proportional to 318,584.08, 477,608.28 and 213,081.04 is: 319,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,584.08 : 477,608.28 = 213,081.04 : x
  2. Step 2: Convert to fraction form
    318,584.08/477,608.28 = 213,081.04/x
  3. Step 3: Cross multiply
    318,584.08x = 477,608.28 × 213,081.04
  4. Step 4: Simplify right side
    318,584.08x = 101,769,269,015.01
  5. Step 5: Solve for x
    x = 101,769,269,015.01/318,584.08
  6. Step 6: Final answer
    x = 319,442.42

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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.