Finding the Fourth Proportional to 309,390.24, 464,085.72 and 84,752.60
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Solution
The fourth proportional to 309,390.24, 464,085.72 and 84,752.60 is: 127,128.99
Step by Step Solution
- Step 1: Write the proportion equation
309,390.24 : 464,085.72 = 84,752.60 : x - Step 2: Convert to fraction form
309,390.24/464,085.72 = 84,752.60/x - Step 3: Cross multiply
309,390.24x = 464,085.72 × 84,752.60 - Step 4: Simplify right side
309,390.24x = 39,332,469,072.44 - Step 5: Solve for x
x = 39,332,469,072.44/309,390.24 - Step 6: Final answer
x = 127,128.99
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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.