Finding the Fourth Proportional to 283,511.97, 391,246.49 and 156,187.56
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Solution
The fourth proportional to 283,511.97, 391,246.49 and 156,187.56 is: 215,538.82
Step by Step Solution
- Step 1: Write the proportion equation
283,511.97 : 391,246.49 = 156,187.56 : x - Step 2: Convert to fraction form
283,511.97/391,246.49 = 156,187.56/x - Step 3: Cross multiply
283,511.97x = 391,246.49 × 156,187.56 - Step 4: Simplify right side
283,511.97x = 61,107,834,631.66 - Step 5: Solve for x
x = 61,107,834,631.66/283,511.97 - Step 6: Final answer
x = 215,538.82
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1.5x scale
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.