Finding the Fourth Proportional to 259,531.54, 389,354.99 and 79,641.99
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Solution
The fourth proportional to 259,531.54, 389,354.99 and 79,641.99 is: 119,480.69
Step by Step Solution
- Step 1: Write the proportion equation
259,531.54 : 389,354.99 = 79,641.99 : x - Step 2: Convert to fraction form
259,531.54/389,354.99 = 79,641.99/x - Step 3: Cross multiply
259,531.54x = 389,354.99 × 79,641.99 - Step 4: Simplify right side
259,531.54x = 31,009,006,220.03 - Step 5: Solve for x
x = 31,009,006,220.03/259,531.54 - Step 6: Final answer
x = 119,480.69
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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.