Finding the Fourth Proportional to 231,655.18, 319,519.35 and 212,596.49
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Solution
The fourth proportional to 231,655.18, 319,519.35 and 212,596.49 is: 293,231.92
Step by Step Solution
- Step 1: Write the proportion equation
231,655.18 : 319,519.35 = 212,596.49 : x - Step 2: Convert to fraction form
231,655.18/319,519.35 = 212,596.49/x - Step 3: Cross multiply
231,655.18x = 319,519.35 × 212,596.49 - Step 4: Simplify right side
231,655.18x = 67,928,692,297.08 - Step 5: Solve for x
x = 67,928,692,297.08/231,655.18 - Step 6: Final answer
x = 293,231.92
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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.