Finding the Fourth Proportional to 199,639.84, 298,982.36 and 115,143.84
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Solution
The fourth proportional to 199,639.84, 298,982.36 and 115,143.84 is: 172,440.41
Step by Step Solution
- Step 1: Write the proportion equation
199,639.84 : 298,982.36 = 115,143.84 : x - Step 2: Convert to fraction form
199,639.84/298,982.36 = 115,143.84/x - Step 3: Cross multiply
199,639.84x = 298,982.36 × 115,143.84 - Step 4: Simplify right side
199,639.84x = 34,425,975,815.61 - Step 5: Solve for x
x = 34,425,975,815.61/199,639.84 - Step 6: Final answer
x = 172,440.41
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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.