Finding the Fourth Proportional to 268,232.58, 402,407.19 and 81,258.66
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Solution
The fourth proportional to 268,232.58, 402,407.19 and 81,258.66 is: 121,905.66
Step by Step Solution
- Step 1: Write the proportion equation
268,232.58 : 402,407.19 = 81,258.66 : x - Step 2: Convert to fraction form
268,232.58/402,407.19 = 81,258.66/x - Step 3: Cross multiply
268,232.58x = 402,407.19 × 81,258.66 - Step 4: Simplify right side
268,232.58x = 32,699,069,033.77 - Step 5: Solve for x
x = 32,699,069,033.77/268,232.58 - Step 6: Final answer
x = 121,905.66
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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.