Finding the Fourth Proportional to 196,890.84, 271,617.12 and 116,263.44
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Solution
The fourth proportional to 196,890.84, 271,617.12 and 116,263.44 is: 160,389.08
Step by Step Solution
- Step 1: Write the proportion equation
196,890.84 : 271,617.12 = 116,263.44 : x - Step 2: Convert to fraction form
196,890.84/271,617.12 = 116,263.44/x - Step 3: Cross multiply
196,890.84x = 271,617.12 × 116,263.44 - Step 4: Simplify right side
196,890.84x = 31,579,140,734.09 - Step 5: Solve for x
x = 31,579,140,734.09/196,890.84 - Step 6: Final answer
x = 160,389.08
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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.