Finding the Fourth Proportional to 486,701.20, 671,643.70 and 268,909.19
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Solution
The fourth proportional to 486,701.20, 671,643.70 and 268,909.19 is: 371,092.50
Step by Step Solution
- Step 1: Write the proportion equation
486,701.20 : 671,643.70 = 268,909.19 : x - Step 2: Convert to fraction form
486,701.20/671,643.70 = 268,909.19/x - Step 3: Cross multiply
486,701.20x = 671,643.70 × 268,909.19 - Step 4: Simplify right side
486,701.20x = 180,611,163,335.60 - Step 5: Solve for x
x = 180,611,163,335.60/486,701.20 - Step 6: Final answer
x = 371,092.50
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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.