Finding the Fourth Proportional to 243,817.81, 336,496.50 and 136,415.05
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Solution
The fourth proportional to 243,817.81, 336,496.50 and 136,415.05 is: 188,268.39
Step by Step Solution
- Step 1: Write the proportion equation
243,817.81 : 336,496.50 = 136,415.05 : x - Step 2: Convert to fraction form
243,817.81/336,496.50 = 136,415.05/x - Step 3: Cross multiply
243,817.81x = 336,496.50 × 136,415.05 - Step 4: Simplify right side
243,817.81x = 45,903,186,872.33 - Step 5: Solve for x
x = 45,903,186,872.33/243,817.81 - Step 6: Final answer
x = 188,268.39
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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.