Finding the Fourth Proportional to 389,556.48, 537,361.92 and 268,510.08
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Solution
The fourth proportional to 389,556.48, 537,361.92 and 268,510.08 is: 370,388.12
Step by Step Solution
- Step 1: Write the proportion equation
389,556.48 : 537,361.92 = 268,510.08 : x - Step 2: Convert to fraction form
389,556.48/537,361.92 = 268,510.08/x - Step 3: Cross multiply
389,556.48x = 537,361.92 × 268,510.08 - Step 4: Simplify right side
389,556.48x = 144,287,092,128.15 - Step 5: Solve for x
x = 144,287,092,128.15/389,556.48 - Step 6: Final answer
x = 370,388.12
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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.