Finding the Fourth Proportional to 242,457.10, 363,852.10 and 84,685.70
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Solution
The fourth proportional to 242,457.10, 363,852.10 and 84,685.70 is: 127,086.69
Step by Step Solution
- Step 1: Write the proportion equation
242,457.10 : 363,852.10 = 84,685.70 : x - Step 2: Convert to fraction form
242,457.10/363,852.10 = 84,685.70/x - Step 3: Cross multiply
242,457.10x = 363,852.10 × 84,685.70 - Step 4: Simplify right side
242,457.10x = 30,813,070,800.46 - Step 5: Solve for x
x = 30,813,070,800.46/242,457.10 - Step 6: Final answer
x = 127,086.69
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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.