Finding the Fourth Proportional to 239,439.78, 330,441.75 and 132,009.63
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Solution
The fourth proportional to 239,439.78, 330,441.75 and 132,009.63 is: 182,181.48
Step by Step Solution
- Step 1: Write the proportion equation
239,439.78 : 330,441.75 = 132,009.63 : x - Step 2: Convert to fraction form
239,439.78/330,441.75 = 132,009.63/x - Step 3: Cross multiply
239,439.78x = 330,441.75 × 132,009.63 - Step 4: Simplify right side
239,439.78x = 43,621,493,154.05 - Step 5: Solve for x
x = 43,621,493,154.05/239,439.78 - Step 6: Final answer
x = 182,181.48
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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.