Finding the Fourth Proportional to 263,421.42, 363,521.55 and 142,562.70
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Solution
The fourth proportional to 263,421.42, 363,521.55 and 142,562.70 is: 196,736.52
Step by Step Solution
- Step 1: Write the proportion equation
263,421.42 : 363,521.55 = 142,562.70 : x - Step 2: Convert to fraction form
263,421.42/363,521.55 = 142,562.70/x - Step 3: Cross multiply
263,421.42x = 363,521.55 × 142,562.70 - Step 4: Simplify right side
263,421.42x = 51,824,613,676.19 - Step 5: Solve for x
x = 51,824,613,676.19/263,421.42 - Step 6: Final answer
x = 196,736.52
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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.