Finding the Fourth Proportional to 313,105.08, 432,085.84 and 169,865.12
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Solution
The fourth proportional to 313,105.08, 432,085.84 and 169,865.12 is: 234,414.32
Step by Step Solution
- Step 1: Write the proportion equation
313,105.08 : 432,085.84 = 169,865.12 : x - Step 2: Convert to fraction form
313,105.08/432,085.84 = 169,865.12/x - Step 3: Cross multiply
313,105.08x = 432,085.84 × 169,865.12 - Step 4: Simplify right side
313,105.08x = 73,396,314,672.94 - Step 5: Solve for x
x = 73,396,314,672.94/313,105.08 - Step 6: Final answer
x = 234,414.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.