Finding the Fourth Proportional to 285,319.22, 393,735.68 and 157,992.08
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Solution
The fourth proportional to 285,319.22, 393,735.68 and 157,992.08 is: 218,026.39
Step by Step Solution
- Step 1: Write the proportion equation
285,319.22 : 393,735.68 = 157,992.08 : x - Step 2: Convert to fraction form
285,319.22/393,735.68 = 157,992.08/x - Step 3: Cross multiply
285,319.22x = 393,735.68 × 157,992.08 - Step 4: Simplify right side
285,319.22x = 62,207,119,053.41 - Step 5: Solve for x
x = 62,207,119,053.41/285,319.22 - Step 6: Final answer
x = 218,026.39
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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.