Finding the Fourth Proportional to 402,557.19, 603,909.60 and 165,770.70
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Solution
The fourth proportional to 402,557.19, 603,909.60 and 165,770.70 is: 248,686.45
Step by Step Solution
- Step 1: Write the proportion equation
402,557.19 : 603,909.60 = 165,770.70 : x - Step 2: Convert to fraction form
402,557.19/603,909.60 = 165,770.70/x - Step 3: Cross multiply
402,557.19x = 603,909.60 × 165,770.70 - Step 4: Simplify right side
402,557.19x = 100,110,517,128.72 - Step 5: Solve for x
x = 100,110,517,128.72/402,557.19 - Step 6: Final answer
x = 248,686.45
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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.