Finding the Fourth Proportional to 201,772.48, 278,435.26 and 115,726.99
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Solution
The fourth proportional to 201,772.48, 278,435.26 and 115,726.99 is: 159,697.07
Step by Step Solution
- Step 1: Write the proportion equation
201,772.48 : 278,435.26 = 115,726.99 : x - Step 2: Convert to fraction form
201,772.48/278,435.26 = 115,726.99/x - Step 3: Cross multiply
201,772.48x = 278,435.26 × 115,726.99 - Step 4: Simplify right side
201,772.48x = 32,222,474,549.67 - Step 5: Solve for x
x = 32,222,474,549.67/201,772.48 - Step 6: Final answer
x = 159,697.07
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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.