Finding the Fourth Proportional to 212,686.64, 293,495.56 and 117,203.12
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Solution
The fourth proportional to 212,686.64, 293,495.56 and 117,203.12 is: 161,733.69
Step by Step Solution
- Step 1: Write the proportion equation
212,686.64 : 293,495.56 = 117,203.12 : x - Step 2: Convert to fraction form
212,686.64/293,495.56 = 117,203.12/x - Step 3: Cross multiply
212,686.64x = 293,495.56 × 117,203.12 - Step 4: Simplify right side
212,686.64x = 34,398,595,338.15 - Step 5: Solve for x
x = 34,398,595,338.15/212,686.64 - Step 6: Final answer
x = 161,733.69
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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.