Finding the Fourth Proportional to 216,837.76, 299,248.62 and 121,343.60
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Solution
The fourth proportional to 216,837.76, 299,248.62 and 121,343.60 is: 167,461.17
Step by Step Solution
- Step 1: Write the proportion equation
216,837.76 : 299,248.62 = 121,343.60 : x - Step 2: Convert to fraction form
216,837.76/299,248.62 = 121,343.60/x - Step 3: Cross multiply
216,837.76x = 299,248.62 × 121,343.60 - Step 4: Simplify right side
216,837.76x = 36,311,904,845.83 - Step 5: Solve for x
x = 36,311,904,845.83/216,837.76 - Step 6: Final answer
x = 167,461.17
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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.