Finding the Fourth Proportional to 313,378.54, 432,489.16 and 177,436.44
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Solution
The fourth proportional to 313,378.54, 432,489.16 and 177,436.44 is: 244,877.45
Step by Step Solution
- Step 1: Write the proportion equation
313,378.54 : 432,489.16 = 177,436.44 : x - Step 2: Convert to fraction form
313,378.54/432,489.16 = 177,436.44/x - Step 3: Cross multiply
313,378.54x = 432,489.16 × 177,436.44 - Step 4: Simplify right side
313,378.54x = 76,739,336,888.99 - Step 5: Solve for x
x = 76,739,336,888.99/313,378.54 - Step 6: Final answer
x = 244,877.45
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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.