Finding the Fourth Proportional to 381,447.87, 571,772.97 and 128,641.02
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Solution
The fourth proportional to 381,447.87, 571,772.97 and 128,641.02 is: 192,827.03
Step by Step Solution
- Step 1: Write the proportion equation
381,447.87 : 571,772.97 = 128,641.02 : x - Step 2: Convert to fraction form
381,447.87/571,772.97 = 128,641.02/x - Step 3: Cross multiply
381,447.87x = 571,772.97 × 128,641.02 - Step 4: Simplify right side
381,447.87x = 73,553,458,069.23 - Step 5: Solve for x
x = 73,553,458,069.23/381,447.87 - Step 6: Final answer
x = 192,827.03
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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.