Finding the Fourth Proportional to 357,418.22, 493,326.39 and 221,370.62
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Solution
The fourth proportional to 357,418.22, 493,326.39 and 221,370.62 is: 305,546.73
Step by Step Solution
- Step 1: Write the proportion equation
357,418.22 : 493,326.39 = 221,370.62 : x - Step 2: Convert to fraction form
357,418.22/493,326.39 = 221,370.62/x - Step 3: Cross multiply
357,418.22x = 493,326.39 × 221,370.62 - Step 4: Simplify right side
357,418.22x = 109,207,966,350.03 - Step 5: Solve for x
x = 109,207,966,350.03/357,418.22 - Step 6: Final answer
x = 305,546.73
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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.