Finding the Fourth Proportional to 219,828.02, 329,520.42 and 86,656.70
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Solution
The fourth proportional to 219,828.02, 329,520.42 and 86,656.70 is: 129,897.69
Step by Step Solution
- Step 1: Write the proportion equation
219,828.02 : 329,520.42 = 86,656.70 : x - Step 2: Convert to fraction form
219,828.02/329,520.42 = 86,656.70/x - Step 3: Cross multiply
219,828.02x = 329,520.42 × 86,656.70 - Step 4: Simplify right side
219,828.02x = 28,555,152,179.81 - Step 5: Solve for x
x = 28,555,152,179.81/219,828.02 - Step 6: Final answer
x = 129,897.69
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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.