Finding the Fourth Proportional to 361,881.20, 542,821.80 and 249,906.80
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Solution
The fourth proportional to 361,881.20, 542,821.80 and 249,906.80 is: 374,860.20
Step by Step Solution
- Step 1: Write the proportion equation
361,881.20 : 542,821.80 = 249,906.80 : x - Step 2: Convert to fraction form
361,881.20/542,821.80 = 249,906.80/x - Step 3: Cross multiply
361,881.20x = 542,821.80 × 249,906.80 - Step 4: Simplify right side
361,881.20x = 135,654,859,008.24 - Step 5: Solve for x
x = 135,654,859,008.24/361,881.20 - Step 6: Final answer
x = 374,860.20
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1.5x scale
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.