Finding the Fourth Proportional to 343,872.90, 515,809.35 and 217,901.70
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Solution
The fourth proportional to 343,872.90, 515,809.35 and 217,901.70 is: 326,852.55
Step by Step Solution
- Step 1: Write the proportion equation
343,872.90 : 515,809.35 = 217,901.70 : x - Step 2: Convert to fraction form
343,872.90/515,809.35 = 217,901.70/x - Step 3: Cross multiply
343,872.90x = 515,809.35 × 217,901.70 - Step 4: Simplify right side
343,872.90x = 112,395,734,240.90 - Step 5: Solve for x
x = 112,395,734,240.90/343,872.90 - Step 6: Final answer
x = 326,852.55
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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.