Finding the Fourth Proportional to 212,679.79, 319,167.02 and 84,582.95
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Solution
The fourth proportional to 212,679.79, 319,167.02 and 84,582.95 is: 126,933.02
Step by Step Solution
- Step 1: Write the proportion equation
212,679.79 : 319,167.02 = 84,582.95 : x - Step 2: Convert to fraction form
212,679.79/319,167.02 = 84,582.95/x - Step 3: Cross multiply
212,679.79x = 319,167.02 × 84,582.95 - Step 4: Simplify right side
212,679.79x = 26,996,088,065.40 - Step 5: Solve for x
x = 26,996,088,065.40/212,679.79 - Step 6: Final answer
x = 126,933.02
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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.