Finding the Fourth Proportional to 201,865.90, 302,470.80 and 126,851.80
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Solution
The fourth proportional to 201,865.90, 302,470.80 and 126,851.80 is: 190,071.55
Step by Step Solution
- Step 1: Write the proportion equation
201,865.90 : 302,470.80 = 126,851.80 : x - Step 2: Convert to fraction form
201,865.90/302,470.80 = 126,851.80/x - Step 3: Cross multiply
201,865.90x = 302,470.80 × 126,851.80 - Step 4: Simplify right side
201,865.90x = 38,368,965,427.44 - Step 5: Solve for x
x = 38,368,965,427.44/201,865.90 - Step 6: Final answer
x = 190,071.55
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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.