Finding the Fourth Proportional to 306,495.83, 459,739.12 and 137,897.09
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Solution
The fourth proportional to 306,495.83, 459,739.12 and 137,897.09 is: 206,843.55
Step by Step Solution
- Step 1: Write the proportion equation
306,495.83 : 459,739.12 = 137,897.09 : x - Step 2: Convert to fraction form
306,495.83/459,739.12 = 137,897.09/x - Step 3: Cross multiply
306,495.83x = 459,739.12 × 137,897.09 - Step 4: Simplify right side
306,495.83x = 63,396,686,807.16 - Step 5: Solve for x
x = 63,396,686,807.16/306,495.83 - Step 6: Final answer
x = 206,843.55
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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.