Finding the Fourth Proportional to 204,184.24, 305,964.48 and 85,790.88
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Solution
The fourth proportional to 204,184.24, 305,964.48 and 85,790.88 is: 128,555.28
Step by Step Solution
- Step 1: Write the proportion equation
204,184.24 : 305,964.48 = 85,790.88 : x - Step 2: Convert to fraction form
204,184.24/305,964.48 = 85,790.88/x - Step 3: Cross multiply
204,184.24x = 305,964.48 × 85,790.88 - Step 4: Simplify right side
204,184.24x = 26,248,961,987.94 - Step 5: Solve for x
x = 26,248,961,987.94/204,184.24 - Step 6: Final answer
x = 128,555.28
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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.