Finding the Fourth Proportional to 389,105.19, 536,873.75 and 236,139.98
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Solution
The fourth proportional to 389,105.19, 536,873.75 and 236,139.98 is: 325,817.70
Step by Step Solution
- Step 1: Write the proportion equation
389,105.19 : 536,873.75 = 236,139.98 : x - Step 2: Convert to fraction form
389,105.19/536,873.75 = 236,139.98/x - Step 3: Cross multiply
389,105.19x = 536,873.75 × 236,139.98 - Step 4: Simplify right side
389,105.19x = 126,777,356,587.53 - Step 5: Solve for x
x = 126,777,356,587.53/389,105.19 - Step 6: Final answer
x = 325,817.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.