Finding the Fourth Proportional to 343,420.14, 515,097.36 and 210,231.84
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Solution
The fourth proportional to 343,420.14, 515,097.36 and 210,231.84 is: 315,327.65
Step by Step Solution
- Step 1: Write the proportion equation
343,420.14 : 515,097.36 = 210,231.84 : x - Step 2: Convert to fraction form
343,420.14/515,097.36 = 210,231.84/x - Step 3: Cross multiply
343,420.14x = 515,097.36 × 210,231.84 - Step 4: Simplify right side
343,420.14x = 108,289,865,771.94 - Step 5: Solve for x
x = 108,289,865,771.94/343,420.14 - Step 6: Final answer
x = 315,327.65
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1.5x scale
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.