Finding the Fourth Proportional to 343,790.15, 515,684.01 and 107,132.99
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Solution
The fourth proportional to 343,790.15, 515,684.01 and 107,132.99 is: 160,699.11
Step by Step Solution
- Step 1: Write the proportion equation
343,790.15 : 515,684.01 = 107,132.99 : x - Step 2: Convert to fraction form
343,790.15/515,684.01 = 107,132.99/x - Step 3: Cross multiply
343,790.15x = 515,684.01 × 107,132.99 - Step 4: Simplify right side
343,790.15x = 55,246,769,886.49 - Step 5: Solve for x
x = 55,246,769,886.49/343,790.15 - Step 6: Final answer
x = 160,699.11
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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.