Finding the Fourth Proportional to 437,625.80, 656,438.70 and 142,137.80
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Solution
The fourth proportional to 437,625.80, 656,438.70 and 142,137.80 is: 213,206.70
Step by Step Solution
- Step 1: Write the proportion equation
437,625.80 : 656,438.70 = 142,137.80 : x - Step 2: Convert to fraction form
437,625.80/656,438.70 = 142,137.80/x - Step 3: Cross multiply
437,625.80x = 656,438.70 × 142,137.80 - Step 4: Simplify right side
437,625.80x = 93,304,752,652.86 - Step 5: Solve for x
x = 93,304,752,652.86/437,625.80 - Step 6: Final answer
x = 213,206.70
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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.