Finding the Fourth Proportional to 217,014.15, 299,471.28 and 121,516.07
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Solution
The fourth proportional to 217,014.15, 299,471.28 and 121,516.07 is: 167,687.55
Step by Step Solution
- Step 1: Write the proportion equation
217,014.15 : 299,471.28 = 121,516.07 : x - Step 2: Convert to fraction form
217,014.15/299,471.28 = 121,516.07/x - Step 3: Cross multiply
217,014.15x = 299,471.28 × 121,516.07 - Step 4: Simplify right side
217,014.15x = 36,390,571,070.43 - Step 5: Solve for x
x = 36,390,571,070.43/217,014.15 - Step 6: Final answer
x = 167,687.55
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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.