Finding the Fourth Proportional to 239,247.36, 330,168.81 and 137,291.49
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Solution
The fourth proportional to 239,247.36, 330,168.81 and 137,291.49 is: 189,466.53
Step by Step Solution
- Step 1: Write the proportion equation
239,247.36 : 330,168.81 = 137,291.49 : x - Step 2: Convert to fraction form
239,247.36/330,168.81 = 137,291.49/x - Step 3: Cross multiply
239,247.36x = 330,168.81 × 137,291.49 - Step 4: Simplify right side
239,247.36x = 45,329,367,876.43 - Step 5: Solve for x
x = 45,329,367,876.43/239,247.36 - Step 6: Final answer
x = 189,466.53
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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.