Finding the Fourth Proportional to 283,808.49, 391,248.78 and 223,274.01
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Solution
The fourth proportional to 283,808.49, 391,248.78 and 223,274.01 is: 307,797.99
Step by Step Solution
- Step 1: Write the proportion equation
283,808.49 : 391,248.78 = 223,274.01 : x - Step 2: Convert to fraction form
283,808.49/391,248.78 = 223,274.01/x - Step 3: Cross multiply
283,808.49x = 391,248.78 × 223,274.01 - Step 4: Simplify right side
283,808.49x = 87,355,684,018.21 - Step 5: Solve for x
x = 87,355,684,018.21/283,808.49 - Step 6: Final answer
x = 307,797.99
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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.