Finding the Fourth Proportional to 271,315.20, 406,972.80 and 93,803.70
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Solution
The fourth proportional to 271,315.20, 406,972.80 and 93,803.70 is: 140,705.55
Step by Step Solution
- Step 1: Write the proportion equation
271,315.20 : 406,972.80 = 93,803.70 : x - Step 2: Convert to fraction form
271,315.20/406,972.80 = 93,803.70/x - Step 3: Cross multiply
271,315.20x = 406,972.80 × 93,803.70 - Step 4: Simplify right side
271,315.20x = 38,175,554,439.36 - Step 5: Solve for x
x = 38,175,554,439.36/271,315.20 - Step 6: Final answer
x = 140,705.55
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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.