Finding the Fourth Proportional to 270,424.18, 405,015.19 and 135,072.80
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Solution
The fourth proportional to 270,424.18, 405,015.19 and 135,072.80 is: 202,298.98
Step by Step Solution
- Step 1: Write the proportion equation
270,424.18 : 405,015.19 = 135,072.80 : x - Step 2: Convert to fraction form
270,424.18/405,015.19 = 135,072.80/x - Step 3: Cross multiply
270,424.18x = 405,015.19 × 135,072.80 - Step 4: Simplify right side
270,424.18x = 54,706,535,080.98 - Step 5: Solve for x
x = 54,706,535,080.98/270,424.18 - Step 6: Final answer
x = 202,298.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.