Finding the Fourth Proportional to 313,719.13, 432,932.07 and 170,478.87
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Solution
The fourth proportional to 313,719.13, 432,932.07 and 170,478.87 is: 235,260.65
Step by Step Solution
- Step 1: Write the proportion equation
313,719.13 : 432,932.07 = 170,478.87 : x - Step 2: Convert to fraction form
313,719.13/432,932.07 = 170,478.87/x - Step 3: Cross multiply
313,719.13x = 432,932.07 × 170,478.87 - Step 4: Simplify right side
313,719.13x = 73,805,767,915.70 - Step 5: Solve for x
x = 73,805,767,915.70/313,719.13 - Step 6: Final answer
x = 235,260.65
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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.