Finding the Fourth Proportional to 442,918.20, 664,377.30 and 310,207.80
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Solution
The fourth proportional to 442,918.20, 664,377.30 and 310,207.80 is: 465,311.70
Step by Step Solution
- Step 1: Write the proportion equation
442,918.20 : 664,377.30 = 310,207.80 : x - Step 2: Convert to fraction form
442,918.20/664,377.30 = 310,207.80/x - Step 3: Cross multiply
442,918.20x = 664,377.30 × 310,207.80 - Step 4: Simplify right side
442,918.20x = 206,095,020,602.94 - Step 5: Solve for x
x = 206,095,020,602.94/442,918.20 - Step 6: Final answer
x = 465,311.70
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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.