Finding the Fourth Proportional to 217,163.41, 299,693.75 and 121,666.84
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Solution
The fourth proportional to 217,163.41, 299,693.75 and 121,666.84 is: 167,904.86
Step by Step Solution
- Step 1: Write the proportion equation
217,163.41 : 299,693.75 = 121,666.84 : x - Step 2: Convert to fraction form
217,163.41/299,693.75 = 121,666.84/x - Step 3: Cross multiply
217,163.41x = 299,693.75 × 121,666.84 - Step 4: Simplify right side
217,163.41x = 36,462,791,530.25 - Step 5: Solve for x
x = 36,462,791,530.25/217,163.41 - Step 6: Final answer
x = 167,904.86
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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.