Finding the Fourth Proportional to 205,602.40, 308,403.60 and 149,177.80
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Solution
The fourth proportional to 205,602.40, 308,403.60 and 149,177.80 is: 223,766.70
Step by Step Solution
- Step 1: Write the proportion equation
205,602.40 : 308,403.60 = 149,177.80 : x - Step 2: Convert to fraction form
205,602.40/308,403.60 = 149,177.80/x - Step 3: Cross multiply
205,602.40x = 308,403.60 × 149,177.80 - Step 4: Simplify right side
205,602.40x = 46,006,970,560.08 - Step 5: Solve for x
x = 46,006,970,560.08/205,602.40 - Step 6: Final answer
x = 223,766.70
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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.