Finding the Fourth Proportional to 217,312.08, 299,761.20 and 159,137.88
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Solution
The fourth proportional to 217,312.08, 299,761.20 and 159,137.88 is: 219,515.46
Step by Step Solution
- Step 1: Write the proportion equation
217,312.08 : 299,761.20 = 159,137.88 : x - Step 2: Convert to fraction form
217,312.08/299,761.20 = 159,137.88/x - Step 3: Cross multiply
217,312.08x = 299,761.20 × 159,137.88 - Step 4: Simplify right side
217,312.08x = 47,703,361,874.26 - Step 5: Solve for x
x = 47,703,361,874.26/217,312.08 - Step 6: Final answer
x = 219,515.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.