Finding the Fourth Proportional to 252,465.73, 348,400.75 and 137,742.70
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Solution
The fourth proportional to 252,465.73, 348,400.75 and 137,742.70 is: 190,083.86
Step by Step Solution
- Step 1: Write the proportion equation
252,465.73 : 348,400.75 = 137,742.70 : x - Step 2: Convert to fraction form
252,465.73/348,400.75 = 137,742.70/x - Step 3: Cross multiply
252,465.73x = 348,400.75 × 137,742.70 - Step 4: Simplify right side
252,465.73x = 47,989,659,987.03 - Step 5: Solve for x
x = 47,989,659,987.03/252,465.73 - Step 6: Final answer
x = 190,083.86
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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.