Finding the Fourth Proportional to 343,994.62, 515,793.28 and 133,386.52
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Solution
The fourth proportional to 343,994.62, 515,793.28 and 133,386.52 is: 200,002.75
Step by Step Solution
- Step 1: Write the proportion equation
343,994.62 : 515,793.28 = 133,386.52 : x - Step 2: Convert to fraction form
343,994.62/515,793.28 = 133,386.52/x - Step 3: Cross multiply
343,994.62x = 515,793.28 × 133,386.52 - Step 4: Simplify right side
343,994.62x = 68,799,870,658.59 - Step 5: Solve for x
x = 68,799,870,658.59/343,994.62 - Step 6: Final answer
x = 200,002.75
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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.