Finding the Fourth Proportional to 307,918.20, 461,877.30 and 202,855.80
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Solution
The fourth proportional to 307,918.20, 461,877.30 and 202,855.80 is: 304,283.70
Step by Step Solution
- Step 1: Write the proportion equation
307,918.20 : 461,877.30 = 202,855.80 : x - Step 2: Convert to fraction form
307,918.20/461,877.30 = 202,855.80/x - Step 3: Cross multiply
307,918.20x = 461,877.30 × 202,855.80 - Step 4: Simplify right side
307,918.20x = 93,694,489,193.34 - Step 5: Solve for x
x = 93,694,489,193.34/307,918.20 - Step 6: Final answer
x = 304,283.70
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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.