Finding the Fourth Proportional to 402,517.80, 603,776.70 and 165,781.80
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Solution
The fourth proportional to 402,517.80, 603,776.70 and 165,781.80 is: 248,672.70
Step by Step Solution
- Step 1: Write the proportion equation
402,517.80 : 603,776.70 = 165,781.80 : x - Step 2: Convert to fraction form
402,517.80/603,776.70 = 165,781.80/x - Step 3: Cross multiply
402,517.80x = 603,776.70 × 165,781.80 - Step 4: Simplify right side
402,517.80x = 100,095,188,124.06 - Step 5: Solve for x
x = 100,095,188,124.06/402,517.80 - Step 6: Final answer
x = 248,672.70
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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.