Finding the Fourth Proportional to 354,137.12, 488,694.96 and 192,988.70
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Solution
The fourth proportional to 354,137.12, 488,694.96 and 192,988.70 is: 266,316.63
Step by Step Solution
- Step 1: Write the proportion equation
354,137.12 : 488,694.96 = 192,988.70 : x - Step 2: Convert to fraction form
354,137.12/488,694.96 = 192,988.70/x - Step 3: Cross multiply
354,137.12x = 488,694.96 × 192,988.70 - Step 4: Simplify right side
354,137.12x = 94,312,605,026.95 - Step 5: Solve for x
x = 94,312,605,026.95/354,137.12 - Step 6: Final answer
x = 266,316.63
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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.