Finding the Fourth Proportional to 213,238.84, 319,163.80 and 157,056.80
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Solution
The fourth proportional to 213,238.84, 319,163.80 and 157,056.80 is: 235,073.71
Step by Step Solution
- Step 1: Write the proportion equation
213,238.84 : 319,163.80 = 157,056.80 : x - Step 2: Convert to fraction form
213,238.84/319,163.80 = 157,056.80/x - Step 3: Cross multiply
213,238.84x = 319,163.80 × 157,056.80 - Step 4: Simplify right side
213,238.84x = 50,126,845,103.84 - Step 5: Solve for x
x = 50,126,845,103.84/213,238.84 - Step 6: Final answer
x = 235,073.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.