Finding the Fourth Proportional to 309,829.62, 426,768.30 and 219,029.44
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Solution
The fourth proportional to 309,829.62, 426,768.30 and 219,029.44 is: 301,697.50
Step by Step Solution
- Step 1: Write the proportion equation
309,829.62 : 426,768.30 = 219,029.44 : x - Step 2: Convert to fraction form
309,829.62/426,768.30 = 219,029.44/x - Step 3: Cross multiply
309,829.62x = 426,768.30 × 219,029.44 - Step 4: Simplify right side
309,829.62x = 93,474,821,758.75 - Step 5: Solve for x
x = 93,474,821,758.75/309,829.62 - Step 6: Final answer
x = 301,697.50
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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.