Finding the Fourth Proportional to 283,318.44, 390,982.50 and 154,257.80
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Solution
The fourth proportional to 283,318.44, 390,982.50 and 154,257.80 is: 212,877.43
Step by Step Solution
- Step 1: Write the proportion equation
283,318.44 : 390,982.50 = 154,257.80 : x - Step 2: Convert to fraction form
283,318.44/390,982.50 = 154,257.80/x - Step 3: Cross multiply
283,318.44x = 390,982.50 × 154,257.80 - Step 4: Simplify right side
283,318.44x = 60,312,100,288.50 - Step 5: Solve for x
x = 60,312,100,288.50/283,318.44 - Step 6: Final answer
x = 212,877.43
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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.