Finding the Fourth Proportional to 313,105.49, 432,085.73 and 169,865.49
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Solution
The fourth proportional to 313,105.49, 432,085.73 and 169,865.49 is: 234,414.46
Step by Step Solution
- Step 1: Write the proportion equation
313,105.49 : 432,085.73 = 169,865.49 : x - Step 2: Convert to fraction form
313,105.49/432,085.73 = 169,865.49/x - Step 3: Cross multiply
313,105.49x = 432,085.73 × 169,865.49 - Step 4: Simplify right side
313,105.49x = 73,396,454,248.46 - Step 5: Solve for x
x = 73,396,454,248.46/313,105.49 - Step 6: Final answer
x = 234,414.46
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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.