Finding the Fourth Proportional to 212,876.13, 319,315.50 and 63,117.84
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Solution
The fourth proportional to 212,876.13, 319,315.50 and 63,117.84 is: 94,677.15
Step by Step Solution
- Step 1: Write the proportion equation
212,876.13 : 319,315.50 = 63,117.84 : x - Step 2: Convert to fraction form
212,876.13/319,315.50 = 63,117.84/x - Step 3: Cross multiply
212,876.13x = 319,315.50 × 63,117.84 - Step 4: Simplify right side
212,876.13x = 20,154,504,638.52 - Step 5: Solve for x
x = 20,154,504,638.52/212,876.13 - Step 6: Final answer
x = 94,677.15
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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.