Finding the Fourth Proportional to 201,711.30, 302,566.95 and 138,725.70
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Solution
The fourth proportional to 201,711.30, 302,566.95 and 138,725.70 is: 208,088.55
Step by Step Solution
- Step 1: Write the proportion equation
201,711.30 : 302,566.95 = 138,725.70 : x - Step 2: Convert to fraction form
201,711.30/302,566.95 = 138,725.70/x - Step 3: Cross multiply
201,711.30x = 302,566.95 × 138,725.70 - Step 4: Simplify right side
201,711.30x = 41,973,811,935.62 - Step 5: Solve for x
x = 41,973,811,935.62/201,711.30 - Step 6: Final answer
x = 208,088.55
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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.