Finding the Fourth Proportional to 239,536.67, 359,337.81 and 81,722.75
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Solution
The fourth proportional to 239,536.67, 359,337.81 and 81,722.75 is: 122,595.32
Step by Step Solution
- Step 1: Write the proportion equation
239,536.67 : 359,337.81 = 81,722.75 : x - Step 2: Convert to fraction form
239,536.67/359,337.81 = 81,722.75/x - Step 3: Cross multiply
239,536.67x = 359,337.81 × 81,722.75 - Step 4: Simplify right side
239,536.67x = 29,366,074,012.18 - Step 5: Solve for x
x = 29,366,074,012.18/239,536.67 - Step 6: Final answer
x = 122,595.32
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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.