Finding the Fourth Proportional to 438,716.20, 605,439.36 and 247,730.95
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Solution
The fourth proportional to 438,716.20, 605,439.36 and 247,730.95 is: 341,874.92
Step by Step Solution
- Step 1: Write the proportion equation
438,716.20 : 605,439.36 = 247,730.95 : x - Step 2: Convert to fraction form
438,716.20/605,439.36 = 247,730.95/x - Step 3: Cross multiply
438,716.20x = 605,439.36 × 247,730.95 - Step 4: Simplify right side
438,716.20x = 149,986,067,820.19 - Step 5: Solve for x
x = 149,986,067,820.19/438,716.20 - Step 6: Final answer
x = 341,874.92
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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.