Finding the Fourth Proportional to 263,695.05, 363,898.99 and 142,836.06
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Solution
The fourth proportional to 263,695.05, 363,898.99 and 142,836.06 is: 197,113.67
Step by Step Solution
- Step 1: Write the proportion equation
263,695.05 : 363,898.99 = 142,836.06 : x - Step 2: Convert to fraction form
263,695.05/363,898.99 = 142,836.06/x - Step 3: Cross multiply
263,695.05x = 363,898.99 × 142,836.06 - Step 4: Simplify right side
263,695.05x = 51,977,897,969.58 - Step 5: Solve for x
x = 51,977,897,969.58/263,695.05 - Step 6: Final answer
x = 197,113.67
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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.