Finding the Fourth Proportional to 201,866.10, 302,799.15 and 190,979.70
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Solution
The fourth proportional to 201,866.10, 302,799.15 and 190,979.70 is: 286,469.55
Step by Step Solution
- Step 1: Write the proportion equation
201,866.10 : 302,799.15 = 190,979.70 : x - Step 2: Convert to fraction form
201,866.10/302,799.15 = 190,979.70/x - Step 3: Cross multiply
201,866.10x = 302,799.15 × 190,979.70 - Step 4: Simplify right side
201,866.10x = 57,828,490,827.26 - Step 5: Solve for x
x = 57,828,490,827.26/201,866.10 - Step 6: Final answer
x = 286,469.55
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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.