Finding the Fourth Proportional to 216,473.14, 298,539.60 and 135,908.26
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Solution
The fourth proportional to 216,473.14, 298,539.60 and 135,908.26 is: 187,432.02
Step by Step Solution
- Step 1: Write the proportion equation
216,473.14 : 298,539.60 = 135,908.26 : x - Step 2: Convert to fraction form
216,473.14/298,539.60 = 135,908.26/x - Step 3: Cross multiply
216,473.14x = 298,539.60 × 135,908.26 - Step 4: Simplify right side
216,473.14x = 40,573,997,577.10 - Step 5: Solve for x
x = 40,573,997,577.10/216,473.14 - Step 6: Final answer
x = 187,432.02
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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.