Finding the Fourth Proportional to 255,032.70, 382,111.65 and 121,625.70
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Solution
The fourth proportional to 255,032.70, 382,111.65 and 121,625.70 is: 182,229.95
Step by Step Solution
- Step 1: Write the proportion equation
255,032.70 : 382,111.65 = 121,625.70 : x - Step 2: Convert to fraction form
255,032.70/382,111.65 = 121,625.70/x - Step 3: Cross multiply
255,032.70x = 382,111.65 × 121,625.70 - Step 4: Simplify right side
255,032.70x = 46,474,596,909.41 - Step 5: Solve for x
x = 46,474,596,909.41/255,032.70 - Step 6: Final answer
x = 182,229.95
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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.