Finding the Fourth Proportional to 198,638.06, 274,088.78 and 130,682.52
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Solution
The fourth proportional to 198,638.06, 274,088.78 and 130,682.52 is: 180,320.99
Step by Step Solution
- Step 1: Write the proportion equation
198,638.06 : 274,088.78 = 130,682.52 : x - Step 2: Convert to fraction form
198,638.06/274,088.78 = 130,682.52/x - Step 3: Cross multiply
198,638.06x = 274,088.78 × 130,682.52 - Step 4: Simplify right side
198,638.06x = 35,818,612,474.13 - Step 5: Solve for x
x = 35,818,612,474.13/198,638.06 - Step 6: Final answer
x = 180,320.99
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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.