Finding the Fourth Proportional to 190,864.56, 263,247.12 and 129,657.96
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Solution
The fourth proportional to 190,864.56, 263,247.12 and 129,657.96 is: 178,828.82
Step by Step Solution
- Step 1: Write the proportion equation
190,864.56 : 263,247.12 = 129,657.96 : x - Step 2: Convert to fraction form
190,864.56/263,247.12 = 129,657.96/x - Step 3: Cross multiply
190,864.56x = 263,247.12 × 129,657.96 - Step 4: Simplify right side
190,864.56x = 34,132,084,555.08 - Step 5: Solve for x
x = 34,132,084,555.08/190,864.56 - Step 6: Final answer
x = 178,828.82
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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.