Finding the Fourth Proportional to 212,697.16, 319,118.30 and 133,718.92
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Solution
The fourth proportional to 212,697.16, 319,118.30 and 133,718.92 is: 200,624.00
Step by Step Solution
- Step 1: Write the proportion equation
212,697.16 : 319,118.30 = 133,718.92 : x - Step 2: Convert to fraction form
212,697.16/319,118.30 = 133,718.92/x - Step 3: Cross multiply
212,697.16x = 319,118.30 × 133,718.92 - Step 4: Simplify right side
212,697.16x = 42,672,154,428.24 - Step 5: Solve for x
x = 42,672,154,428.24/212,697.16 - Step 6: Final answer
x = 200,624.00
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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.