Finding the Fourth Proportional to 239,121.86, 329,975.36 and 131,670.92
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Solution
The fourth proportional to 239,121.86, 329,975.36 and 131,670.92 is: 181,698.82
Step by Step Solution
- Step 1: Write the proportion equation
239,121.86 : 329,975.36 = 131,670.92 : x - Step 2: Convert to fraction form
239,121.86/329,975.36 = 131,670.92/x - Step 3: Cross multiply
239,121.86x = 329,975.36 × 131,670.92 - Step 4: Simplify right side
239,121.86x = 43,448,159,228.53 - Step 5: Solve for x
x = 43,448,159,228.53/239,121.86 - Step 6: Final answer
x = 181,698.82
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1.5x scale
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.