Finding the Fourth Proportional to 354,138.52, 488,696.95 and 192,990.12
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Solution
The fourth proportional to 354,138.52, 488,696.95 and 192,990.12 is: 266,318.62
Step by Step Solution
- Step 1: Write the proportion equation
354,138.52 : 488,696.95 = 192,990.12 : x - Step 2: Convert to fraction form
354,138.52/488,696.95 = 192,990.12/x - Step 3: Cross multiply
354,138.52x = 488,696.95 × 192,990.12 - Step 4: Simplify right side
354,138.52x = 94,313,683,024.13 - Step 5: Solve for x
x = 94,313,683,024.13/354,138.52 - Step 6: Final answer
x = 266,318.62
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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.