Finding the Fourth Proportional to 216,957.18, 299,418.12 and 159,857.31
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Solution
The fourth proportional to 216,957.18, 299,418.12 and 159,857.31 is: 220,615.77
Step by Step Solution
- Step 1: Write the proportion equation
216,957.18 : 299,418.12 = 159,857.31 : x - Step 2: Convert to fraction form
216,957.18/299,418.12 = 159,857.31/x - Step 3: Cross multiply
216,957.18x = 299,418.12 × 159,857.31 - Step 4: Simplify right side
216,957.18x = 47,864,175,228.46 - Step 5: Solve for x
x = 47,864,175,228.46/216,957.18 - Step 6: Final answer
x = 220,615.77
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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.