Finding the Fourth Proportional to 138,875.31, 208,232.78 and 122,268.69
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Solution
The fourth proportional to 138,875.31, 208,232.78 and 122,268.69 is: 183,332.43
Step by Step Solution
- Step 1: Write the proportion equation
138,875.31 : 208,232.78 = 122,268.69 : x - Step 2: Convert to fraction form
138,875.31/208,232.78 = 122,268.69/x - Step 3: Cross multiply
138,875.31x = 208,232.78 × 122,268.69 - Step 4: Simplify right side
138,875.31x = 25,460,348,614.31 - Step 5: Solve for x
x = 25,460,348,614.31/138,875.31 - Step 6: Final answer
x = 183,332.43
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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.