Finding the Fourth Proportional to 216,886.14, 299,302.80 and 121,392.78
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Solution
The fourth proportional to 216,886.14, 299,302.80 and 121,392.78 is: 167,522.00
Step by Step Solution
- Step 1: Write the proportion equation
216,886.14 : 299,302.80 = 121,392.78 : x - Step 2: Convert to fraction form
216,886.14/299,302.80 = 121,392.78/x - Step 3: Cross multiply
216,886.14x = 299,302.80 × 121,392.78 - Step 4: Simplify right side
216,886.14x = 36,333,198,953.78 - Step 5: Solve for x
x = 36,333,198,953.78/216,886.14 - Step 6: Final answer
x = 167,522.00
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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.