Home / 290,381.28-435,330-252,849.12

Finding the Fourth Proportional to 290,381.28, 435,330 and 252,849.12

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Solution

The fourth proportional to 290,381.28, 435,330 and 252,849.12 is: 379,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,381.28 : 435,330 = 252,849.12 : x
  2. Step 2: Convert to fraction form
    290,381.28/435,330 = 252,849.12/x
  3. Step 3: Cross multiply
    290,381.28x = 435,330 × 252,849.12
  4. Step 4: Simplify right side
    290,381.28x = 110,072,807,409.60
  5. Step 5: Solve for x
    x = 110,072,807,409.60/290,381.28
  6. Step 6: Final answer
    x = 379,063.03

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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.