Finding the Fourth Proportional to 206,984.19, 310,513.20 and 57,221.17
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Solution
The fourth proportional to 206,984.19, 310,513.20 and 57,221.17 is: 85,841.95
Step by Step Solution
- Step 1: Write the proportion equation
206,984.19 : 310,513.20 = 57,221.17 : x - Step 2: Convert to fraction form
206,984.19/310,513.20 = 57,221.17/x - Step 3: Cross multiply
206,984.19x = 310,513.20 × 57,221.17 - Step 4: Simplify right side
206,984.19x = 17,767,927,613.58 - Step 5: Solve for x
x = 17,767,927,613.58/206,984.19 - Step 6: Final answer
x = 85,841.95
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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.