Finding the Fourth Proportional to 306,995.93, 460,543.11 and 129,529.09
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Solution
The fourth proportional to 306,995.93, 460,543.11 and 129,529.09 is: 194,314.40
Step by Step Solution
- Step 1: Write the proportion equation
306,995.93 : 460,543.11 = 129,529.09 : x - Step 2: Convert to fraction form
306,995.93/460,543.11 = 129,529.09/x - Step 3: Cross multiply
306,995.93x = 460,543.11 × 129,529.09 - Step 4: Simplify right side
306,995.93x = 59,653,729,944.07 - Step 5: Solve for x
x = 59,653,729,944.07/306,995.93 - Step 6: Final answer
x = 194,314.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.