Finding the Fourth Proportional to 313,697.14, 432,901.20 and 170,457.70
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Solution
The fourth proportional to 313,697.14, 432,901.20 and 170,457.70 is: 235,231.16
Step by Step Solution
- Step 1: Write the proportion equation
313,697.14 : 432,901.20 = 170,457.70 : x - Step 2: Convert to fraction form
313,697.14/432,901.20 = 170,457.70/x - Step 3: Cross multiply
313,697.14x = 432,901.20 × 170,457.70 - Step 4: Simplify right side
313,697.14x = 73,791,342,879.24 - Step 5: Solve for x
x = 73,791,342,879.24/313,697.14 - Step 6: Final answer
x = 235,231.16
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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.