Finding the Fourth Proportional to 238,725.63, 329,443.61 and 129,830.99
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Solution
The fourth proportional to 238,725.63, 329,443.61 and 129,830.99 is: 179,167.98
Step by Step Solution
- Step 1: Write the proportion equation
238,725.63 : 329,443.61 = 129,830.99 : x - Step 2: Convert to fraction form
238,725.63/329,443.61 = 129,830.99/x - Step 3: Cross multiply
238,725.63x = 329,443.61 × 129,830.99 - Step 4: Simplify right side
238,725.63x = 42,771,987,739.10 - Step 5: Solve for x
x = 42,771,987,739.10/238,725.63 - Step 6: Final answer
x = 179,167.98
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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.