Finding the Fourth Proportional to 247,968.20, 371,952.30 and 129,675.80
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Solution
The fourth proportional to 247,968.20, 371,952.30 and 129,675.80 is: 194,513.70
Step by Step Solution
- Step 1: Write the proportion equation
247,968.20 : 371,952.30 = 129,675.80 : x - Step 2: Convert to fraction form
247,968.20/371,952.30 = 129,675.80/x - Step 3: Cross multiply
247,968.20x = 371,952.30 × 129,675.80 - Step 4: Simplify right side
247,968.20x = 48,233,212,064.34 - Step 5: Solve for x
x = 48,233,212,064.34/247,968.20 - Step 6: Final answer
x = 194,513.70
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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.