Finding the Fourth Proportional to 219,294.95, 328,906.37 and 77,106.81
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Solution
The fourth proportional to 219,294.95, 328,906.37 and 77,106.81 is: 115,647.54
Step by Step Solution
- Step 1: Write the proportion equation
219,294.95 : 328,906.37 = 77,106.81 : x - Step 2: Convert to fraction form
219,294.95/328,906.37 = 77,106.81/x - Step 3: Cross multiply
219,294.95x = 328,906.37 × 77,106.81 - Step 4: Simplify right side
219,294.95x = 25,360,920,979.38 - Step 5: Solve for x
x = 25,360,920,979.38/219,294.95 - Step 6: Final answer
x = 115,647.54
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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.