Finding the Fourth Proportional to 323,415.16, 485,174.58 and 136,454.20
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Solution
The fourth proportional to 323,415.16, 485,174.58 and 136,454.20 is: 204,703.17
Step by Step Solution
- Step 1: Write the proportion equation
323,415.16 : 485,174.58 = 136,454.20 : x - Step 2: Convert to fraction form
323,415.16/485,174.58 = 136,454.20/x - Step 3: Cross multiply
323,415.16x = 485,174.58 × 136,454.20 - Step 4: Simplify right side
323,415.16x = 66,204,109,174.24 - Step 5: Solve for x
x = 66,204,109,174.24/323,415.16 - Step 6: Final answer
x = 204,703.17
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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.