Finding the Fourth Proportional to 221,156.92, 331,734.30 and 63,386.20
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Solution
The fourth proportional to 221,156.92, 331,734.30 and 63,386.20 is: 95,078.99
Step by Step Solution
- Step 1: Write the proportion equation
221,156.92 : 331,734.30 = 63,386.20 : x - Step 2: Convert to fraction form
221,156.92/331,734.30 = 63,386.20/x - Step 3: Cross multiply
221,156.92x = 331,734.30 × 63,386.20 - Step 4: Simplify right side
221,156.92x = 21,027,376,686.66 - Step 5: Solve for x
x = 21,027,376,686.66/221,156.92 - Step 6: Final answer
x = 95,078.99
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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.