Finding the Fourth Proportional to 239,319.71, 330,261.20 and 131,889.74
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Solution
The fourth proportional to 239,319.71, 330,261.20 and 131,889.74 is: 182,007.84
Step by Step Solution
- Step 1: Write the proportion equation
239,319.71 : 330,261.20 = 131,889.74 : x - Step 2: Convert to fraction form
239,319.71/330,261.20 = 131,889.74/x - Step 3: Cross multiply
239,319.71x = 330,261.20 × 131,889.74 - Step 4: Simplify right side
239,319.71x = 43,558,063,140.64 - Step 5: Solve for x
x = 43,558,063,140.64/239,319.71 - Step 6: Final answer
x = 182,007.84
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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.