Finding the Fourth Proportional to 307,929.20, 461,893.80 and 202,809.20
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Solution
The fourth proportional to 307,929.20, 461,893.80 and 202,809.20 is: 304,213.80
Step by Step Solution
- Step 1: Write the proportion equation
307,929.20 : 461,893.80 = 202,809.20 : x - Step 2: Convert to fraction form
307,929.20/461,893.80 = 202,809.20/x - Step 3: Cross multiply
307,929.20x = 461,893.80 × 202,809.20 - Step 4: Simplify right side
307,929.20x = 93,676,312,062.96 - Step 5: Solve for x
x = 93,676,312,062.96/307,929.20 - Step 6: Final answer
x = 304,213.80
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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.