Finding the Fourth Proportional to 238,594.09, 329,266.14 and 129,705.75
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Solution
The fourth proportional to 238,594.09, 329,266.14 and 129,705.75 is: 178,997.36
Step by Step Solution
- Step 1: Write the proportion equation
238,594.09 : 329,266.14 = 129,705.75 : x - Step 2: Convert to fraction form
238,594.09/329,266.14 = 129,705.75/x - Step 3: Cross multiply
238,594.09x = 329,266.14 × 129,705.75 - Step 4: Simplify right side
238,594.09x = 42,707,711,638.31 - Step 5: Solve for x
x = 42,707,711,638.31/238,594.09 - Step 6: Final answer
x = 178,997.36
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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.