Finding the Fourth Proportional to 239,118.24, 329,984.16 and 137,147.68
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Solution
The fourth proportional to 239,118.24, 329,984.16 and 137,147.68 is: 189,264.37
Step by Step Solution
- Step 1: Write the proportion equation
239,118.24 : 329,984.16 = 137,147.68 : x - Step 2: Convert to fraction form
239,118.24/329,984.16 = 137,147.68/x - Step 3: Cross multiply
239,118.24x = 329,984.16 × 137,147.68 - Step 4: Simplify right side
239,118.24x = 45,256,561,980.75 - Step 5: Solve for x
x = 45,256,561,980.75/239,118.24 - Step 6: Final answer
x = 189,264.37
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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.