Finding the Fourth Proportional to 254,605.85, 381,326.99 and 121,579.28
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Solution
The fourth proportional to 254,605.85, 381,326.99 and 121,579.28 is: 182,091.10
Step by Step Solution
- Step 1: Write the proportion equation
254,605.85 : 381,326.99 = 121,579.28 : x - Step 2: Convert to fraction form
254,605.85/381,326.99 = 121,579.28/x - Step 3: Cross multiply
254,605.85x = 381,326.99 × 121,579.28 - Step 4: Simplify right side
254,605.85x = 46,361,458,374.24 - Step 5: Solve for x
x = 46,361,458,374.24/254,605.85 - Step 6: Final answer
x = 182,091.10
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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.