Finding the Fourth Proportional to 663,153.80, 994,730.70 and 219,921.80
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Solution
The fourth proportional to 663,153.80, 994,730.70 and 219,921.80 is: 329,882.70
Step by Step Solution
- Step 1: Write the proportion equation
663,153.80 : 994,730.70 = 219,921.80 : x - Step 2: Convert to fraction form
663,153.80/994,730.70 = 219,921.80/x - Step 3: Cross multiply
663,153.80x = 994,730.70 × 219,921.80 - Step 4: Simplify right side
663,153.80x = 218,762,966,059.26 - Step 5: Solve for x
x = 218,762,966,059.26/663,153.80 - Step 6: Final answer
x = 329,882.70
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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.