Finding the Fourth Proportional to 309,830.62, 426,769.68 and 219,030.44
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Solution
The fourth proportional to 309,830.62, 426,769.68 and 219,030.44 is: 301,698.88
Step by Step Solution
- Step 1: Write the proportion equation
309,830.62 : 426,769.68 = 219,030.44 : x - Step 2: Convert to fraction form
309,830.62/426,769.68 = 219,030.44/x - Step 3: Cross multiply
309,830.62x = 426,769.68 × 219,030.44 - Step 4: Simplify right side
309,830.62x = 93,475,550,789.06 - Step 5: Solve for x
x = 93,475,550,789.06/309,830.62 - Step 6: Final answer
x = 301,698.88
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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.