Finding the Fourth Proportional to 201,742.10, 302,831.85 and 126,946.70
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Solution
The fourth proportional to 201,742.10, 302,831.85 and 126,946.70 is: 190,557.67
Step by Step Solution
- Step 1: Write the proportion equation
201,742.10 : 302,831.85 = 126,946.70 : x - Step 2: Convert to fraction form
201,742.10/302,831.85 = 126,946.70/x - Step 3: Cross multiply
201,742.10x = 302,831.85 × 126,946.70 - Step 4: Simplify right side
201,742.10x = 38,443,504,012.40 - Step 5: Solve for x
x = 38,443,504,012.40/201,742.10 - Step 6: Final answer
x = 190,557.67
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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.