Finding the Fourth Proportional to 239,137.30, 330,011.58 and 131,711.05
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Solution
The fourth proportional to 239,137.30, 330,011.58 and 131,711.05 is: 181,762.41
Step by Step Solution
- Step 1: Write the proportion equation
239,137.30 : 330,011.58 = 131,711.05 : x - Step 2: Convert to fraction form
239,137.30/330,011.58 = 131,711.05/x - Step 3: Cross multiply
239,137.30x = 330,011.58 × 131,711.05 - Step 4: Simplify right side
239,137.30x = 43,466,171,713.96 - Step 5: Solve for x
x = 43,466,171,713.96/239,137.30 - Step 6: Final answer
x = 181,762.41
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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.