Finding the Fourth Proportional to 429,393.93, 644,192.05 and 129,876.99
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Solution
The fourth proportional to 429,393.93, 644,192.05 and 129,876.99 is: 194,846.08
Step by Step Solution
- Step 1: Write the proportion equation
429,393.93 : 644,192.05 = 129,876.99 : x - Step 2: Convert to fraction form
429,393.93/644,192.05 = 129,876.99/x - Step 3: Cross multiply
429,393.93x = 644,192.05 × 129,876.99 - Step 4: Simplify right side
429,393.93x = 83,665,724,435.93 - Step 5: Solve for x
x = 83,665,724,435.93/429,393.93 - Step 6: Final answer
x = 194,846.08
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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.