Finding the Fourth Proportional to 381,178.94, 571,772.84 and 114,941.75
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Solution
The fourth proportional to 381,178.94, 571,772.84 and 114,941.75 is: 172,413.95
Step by Step Solution
- Step 1: Write the proportion equation
381,178.94 : 571,772.84 = 114,941.75 : x - Step 2: Convert to fraction form
381,178.94/571,772.84 = 114,941.75/x - Step 3: Cross multiply
381,178.94x = 571,772.84 × 114,941.75 - Step 4: Simplify right side
381,178.94x = 65,720,567,398.50 - Step 5: Solve for x
x = 65,720,567,398.50/381,178.94 - Step 6: Final answer
x = 172,413.95
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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.