Finding the Fourth Proportional to 418,174.12, 626,648.80 and 207,391.08
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Solution
The fourth proportional to 418,174.12, 626,648.80 and 207,391.08 is: 310,782.91
Step by Step Solution
- Step 1: Write the proportion equation
418,174.12 : 626,648.80 = 207,391.08 : x - Step 2: Convert to fraction form
418,174.12/626,648.80 = 207,391.08/x - Step 3: Cross multiply
418,174.12x = 626,648.80 × 207,391.08 - Step 4: Simplify right side
418,174.12x = 129,961,371,412.70 - Step 5: Solve for x
x = 129,961,371,412.70/418,174.12 - Step 6: Final answer
x = 310,782.91
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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.