Finding the Fourth Proportional to 420,053.68, 629,896.20 and 153,745.20
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Solution
The fourth proportional to 420,053.68, 629,896.20 and 153,745.20 is: 230,550.34
Step by Step Solution
- Step 1: Write the proportion equation
420,053.68 : 629,896.20 = 153,745.20 : x - Step 2: Convert to fraction form
420,053.68/629,896.20 = 153,745.20/x - Step 3: Cross multiply
420,053.68x = 629,896.20 × 153,745.20 - Step 4: Simplify right side
420,053.68x = 96,843,517,248.24 - Step 5: Solve for x
x = 96,843,517,248.24/420,053.68 - Step 6: Final answer
x = 230,550.34
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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.