Finding the Fourth Proportional to 226,283.21, 312,236.15 and 130,771.47
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Solution
The fourth proportional to 226,283.21, 312,236.15 and 130,771.47 is: 180,444.59
Step by Step Solution
- Step 1: Write the proportion equation
226,283.21 : 312,236.15 = 130,771.47 : x - Step 2: Convert to fraction form
226,283.21/312,236.15 = 130,771.47/x - Step 3: Cross multiply
226,283.21x = 312,236.15 × 130,771.47 - Step 4: Simplify right side
226,283.21x = 40,831,579,668.78 - Step 5: Solve for x
x = 40,831,579,668.78/226,283.21 - Step 6: Final answer
x = 180,444.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.