Finding the Fourth Proportional to 283,246.26, 390,135.22 and 217,709.76
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Solution
The fourth proportional to 283,246.26, 390,135.22 and 217,709.76 is: 299,867.14
Step by Step Solution
- Step 1: Write the proportion equation
283,246.26 : 390,135.22 = 217,709.76 : x - Step 2: Convert to fraction form
283,246.26/390,135.22 = 217,709.76/x - Step 3: Cross multiply
283,246.26x = 390,135.22 × 217,709.76 - Step 4: Simplify right side
283,246.26x = 84,936,245,113.75 - Step 5: Solve for x
x = 84,936,245,113.75/283,246.26 - Step 6: Final answer
x = 299,867.14
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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.