Finding the Fourth Proportional to 354,539.87, 489,268.14 and 193,395.63
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Solution
The fourth proportional to 354,539.87, 489,268.14 and 193,395.63 is: 266,887.67
Step by Step Solution
- Step 1: Write the proportion equation
354,539.87 : 489,268.14 = 193,395.63 : x - Step 2: Convert to fraction form
354,539.87/489,268.14 = 193,395.63/x - Step 3: Cross multiply
354,539.87x = 489,268.14 × 193,395.63 - Step 4: Simplify right side
354,539.87x = 94,622,320,174.23 - Step 5: Solve for x
x = 94,622,320,174.23/354,539.87 - Step 6: Final answer
x = 266,887.67
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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.