Finding the Fourth Proportional to 219,989.70, 329,984.55 and 141,257.70
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Solution
The fourth proportional to 219,989.70, 329,984.55 and 141,257.70 is: 211,886.55
Step by Step Solution
- Step 1: Write the proportion equation
219,989.70 : 329,984.55 = 141,257.70 : x - Step 2: Convert to fraction form
219,989.70/329,984.55 = 141,257.70/x - Step 3: Cross multiply
219,989.70x = 329,984.55 × 141,257.70 - Step 4: Simplify right side
219,989.70x = 46,612,858,568.54 - Step 5: Solve for x
x = 46,612,858,568.54/219,989.70 - Step 6: Final answer
x = 211,886.55
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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.