Finding the Fourth Proportional to 293,815.40, 441,257.70 and 257,073.80
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Solution
The fourth proportional to 293,815.40, 441,257.70 and 257,073.80 is: 386,078.45
Step by Step Solution
- Step 1: Write the proportion equation
293,815.40 : 441,257.70 = 257,073.80 : x - Step 2: Convert to fraction form
293,815.40/441,257.70 = 257,073.80/x - Step 3: Cross multiply
293,815.40x = 441,257.70 × 257,073.80 - Step 4: Simplify right side
293,815.40x = 113,435,793,718.26 - Step 5: Solve for x
x = 113,435,793,718.26/293,815.40 - Step 6: Final answer
x = 386,078.45
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1.5x scale
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.