Finding the Fourth Proportional to 213,369.18, 294,448.86 and 122,742.60
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Solution
The fourth proportional to 213,369.18, 294,448.86 and 122,742.60 is: 169,384.44
Step by Step Solution
- Step 1: Write the proportion equation
213,369.18 : 294,448.86 = 122,742.60 : x - Step 2: Convert to fraction form
213,369.18/294,448.86 = 122,742.60/x - Step 3: Cross multiply
213,369.18x = 294,448.86 × 122,742.60 - Step 4: Simplify right side
213,369.18x = 36,141,418,643.44 - Step 5: Solve for x
x = 36,141,418,643.44/213,369.18 - Step 6: Final answer
x = 169,384.44
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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.