Finding the Fourth Proportional to 216,392.18, 298,616.81 and 131,536.58
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Solution
The fourth proportional to 216,392.18, 298,616.81 and 131,536.58 is: 181,517.80
Step by Step Solution
- Step 1: Write the proportion equation
216,392.18 : 298,616.81 = 131,536.58 : x - Step 2: Convert to fraction form
216,392.18/298,616.81 = 131,536.58/x - Step 3: Cross multiply
216,392.18x = 298,616.81 × 131,536.58 - Step 4: Simplify right side
216,392.18x = 39,279,031,767.14 - Step 5: Solve for x
x = 39,279,031,767.14/216,392.18 - Step 6: Final answer
x = 181,517.80
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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.