Finding the Fourth Proportional to 216,688.59, 299,028.62 and 121,195.29
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Solution
The fourth proportional to 216,688.59, 299,028.62 and 121,195.29 is: 167,248.59
Step by Step Solution
- Step 1: Write the proportion equation
216,688.59 : 299,028.62 = 121,195.29 : x - Step 2: Convert to fraction form
216,688.59/299,028.62 = 121,195.29/x - Step 3: Cross multiply
216,688.59x = 299,028.62 × 121,195.29 - Step 4: Simplify right side
216,688.59x = 36,240,860,622.19 - Step 5: Solve for x
x = 36,240,860,622.19/216,688.59 - Step 6: Final answer
x = 167,248.59
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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.