Finding the Fourth Proportional to 486,965.20, 730,484.48 and 145,381.62
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Solution
The fourth proportional to 486,965.20, 730,484.48 and 145,381.62 is: 218,083.38
Step by Step Solution
- Step 1: Write the proportion equation
486,965.20 : 730,484.48 = 145,381.62 : x - Step 2: Convert to fraction form
486,965.20/730,484.48 = 145,381.62/x - Step 3: Cross multiply
486,965.20x = 730,484.48 × 145,381.62 - Step 4: Simplify right side
486,965.20x = 106,199,017,087.26 - Step 5: Solve for x
x = 106,199,017,087.26/486,965.20 - Step 6: Final answer
x = 218,083.38
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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.