Finding the Fourth Proportional to 283,971.84, 426,220.28 and 143,828.88
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Solution
The fourth proportional to 283,971.84, 426,220.28 and 143,828.88 is: 215,876.28
Step by Step Solution
- Step 1: Write the proportion equation
283,971.84 : 426,220.28 = 143,828.88 : x - Step 2: Convert to fraction form
283,971.84/426,220.28 = 143,828.88/x - Step 3: Cross multiply
283,971.84x = 426,220.28 × 143,828.88 - Step 4: Simplify right side
283,971.84x = 61,302,785,505.69 - Step 5: Solve for x
x = 61,302,785,505.69/283,971.84 - Step 6: Final answer
x = 215,876.28
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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.