Finding the Fourth Proportional to 442,805.20, 664,207.80 and 143,307.70
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Solution
The fourth proportional to 442,805.20, 664,207.80 and 143,307.70 is: 214,961.55
Step by Step Solution
- Step 1: Write the proportion equation
442,805.20 : 664,207.80 = 143,307.70 : x - Step 2: Convert to fraction form
442,805.20/664,207.80 = 143,307.70/x - Step 3: Cross multiply
442,805.20x = 664,207.80 × 143,307.70 - Step 4: Simplify right side
442,805.20x = 95,186,092,140.06 - Step 5: Solve for x
x = 95,186,092,140.06/442,805.20 - Step 6: Final answer
x = 214,961.55
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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.