Finding the Fourth Proportional to 190,035.19, 262,230.70 and 128,656.53
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Solution
The fourth proportional to 190,035.19, 262,230.70 and 128,656.53 is: 177,533.92
Step by Step Solution
- Step 1: Write the proportion equation
190,035.19 : 262,230.70 = 128,656.53 : x - Step 2: Convert to fraction form
190,035.19/262,230.70 = 128,656.53/x - Step 3: Cross multiply
190,035.19x = 262,230.70 × 128,656.53 - Step 4: Simplify right side
190,035.19x = 33,737,691,921.47 - Step 5: Solve for x
x = 33,737,691,921.47/190,035.19 - Step 6: Final answer
x = 177,533.92
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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.