Finding the Fourth Proportional to 178,243.02, 245,883.36 and 120,862.92
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Solution
The fourth proportional to 178,243.02, 245,883.36 and 120,862.92 is: 166,728.44
Step by Step Solution
- Step 1: Write the proportion equation
178,243.02 : 245,883.36 = 120,862.92 : x - Step 2: Convert to fraction form
178,243.02/245,883.36 = 120,862.92/x - Step 3: Cross multiply
178,243.02x = 245,883.36 × 120,862.92 - Step 4: Simplify right side
178,243.02x = 29,718,180,415.78 - Step 5: Solve for x
x = 29,718,180,415.78/178,243.02 - Step 6: Final answer
x = 166,728.44
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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.