Finding the Fourth Proportional to 162,639.78, 243,959.68 and 44,311.74
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Solution
The fourth proportional to 162,639.78, 243,959.68 and 44,311.74 is: 66,467.61
Step by Step Solution
- Step 1: Write the proportion equation
162,639.78 : 243,959.68 = 44,311.74 : x - Step 2: Convert to fraction form
162,639.78/243,959.68 = 44,311.74/x - Step 3: Cross multiply
162,639.78x = 243,959.68 × 44,311.74 - Step 4: Simplify right side
162,639.78x = 10,810,277,910.64 - Step 5: Solve for x
x = 10,810,277,910.64/162,639.78 - Step 6: Final answer
x = 66,467.61
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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.