Finding the Fourth Proportional to 656,135.70, 984,203.55 and 212,903.70
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Solution
The fourth proportional to 656,135.70, 984,203.55 and 212,903.70 is: 319,355.55
Step by Step Solution
- Step 1: Write the proportion equation
656,135.70 : 984,203.55 = 212,903.70 : x - Step 2: Convert to fraction form
656,135.70/984,203.55 = 212,903.70/x - Step 3: Cross multiply
656,135.70x = 984,203.55 × 212,903.70 - Step 4: Simplify right side
656,135.70x = 209,540,577,348.14 - Step 5: Solve for x
x = 209,540,577,348.14/656,135.70 - Step 6: Final answer
x = 319,355.55
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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.