Home / 289,321.22-434,010.53-120,894.19

Finding the Fourth Proportional to 289,321.22, 434,010.53 and 120,894.19

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Solution

The fourth proportional to 289,321.22, 434,010.53 and 120,894.19 is: 181,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,321.22 : 434,010.53 = 120,894.19 : x
  2. Step 2: Convert to fraction form
    289,321.22/434,010.53 = 120,894.19/x
  3. Step 3: Cross multiply
    289,321.22x = 434,010.53 × 120,894.19
  4. Step 4: Simplify right side
    289,321.22x = 52,469,351,956.38
  5. Step 5: Solve for x
    x = 52,469,351,956.38/289,321.22
  6. Step 6: Final answer
    x = 181,353.28

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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.