Finding the Fourth Proportional to 155,232.25, 214,217.94 and 86,318.96
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Solution
The fourth proportional to 155,232.25, 214,217.94 and 86,318.96 is: 119,118.74
Step by Step Solution
- Step 1: Write the proportion equation
155,232.25 : 214,217.94 = 86,318.96 : x - Step 2: Convert to fraction form
155,232.25/214,217.94 = 86,318.96/x - Step 3: Cross multiply
155,232.25x = 214,217.94 × 86,318.96 - Step 4: Simplify right side
155,232.25x = 18,491,069,794.14 - Step 5: Solve for x
x = 18,491,069,794.14/155,232.25 - Step 6: Final answer
x = 119,118.74
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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.