Finding the Fourth Proportional to 203,090.09, 280,266.48 and 112,447.44
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Solution
The fourth proportional to 203,090.09, 280,266.48 and 112,447.44 is: 155,178.66
Step by Step Solution
- Step 1: Write the proportion equation
203,090.09 : 280,266.48 = 112,447.44 : x - Step 2: Convert to fraction form
203,090.09/280,266.48 = 112,447.44/x - Step 3: Cross multiply
203,090.09x = 280,266.48 × 112,447.44 - Step 4: Simplify right side
203,090.09x = 31,515,248,193.81 - Step 5: Solve for x
x = 31,515,248,193.81/203,090.09 - Step 6: Final answer
x = 155,178.66
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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.