Finding the Fourth Proportional to 263,350.35, 363,420.90 and 142,488.99
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Solution
The fourth proportional to 263,350.35, 363,420.90 and 142,488.99 is: 196,633.41
Step by Step Solution
- Step 1: Write the proportion equation
263,350.35 : 363,420.90 = 142,488.99 : x - Step 2: Convert to fraction form
263,350.35/363,420.90 = 142,488.99/x - Step 3: Cross multiply
263,350.35x = 363,420.90 × 142,488.99 - Step 4: Simplify right side
263,350.35x = 51,783,476,985.89 - Step 5: Solve for x
x = 51,783,476,985.89/263,350.35 - Step 6: Final answer
x = 196,633.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.