Finding the Fourth Proportional to 354,234.06, 531,358.38 and 143,728.02
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Solution
The fourth proportional to 354,234.06, 531,358.38 and 143,728.02 is: 215,594.99
Step by Step Solution
- Step 1: Write the proportion equation
354,234.06 : 531,358.38 = 143,728.02 : x - Step 2: Convert to fraction form
354,234.06/531,358.38 = 143,728.02/x - Step 3: Cross multiply
354,234.06x = 531,358.38 × 143,728.02 - Step 4: Simplify right side
354,234.06x = 76,371,087,867.81 - Step 5: Solve for x
x = 76,371,087,867.81/354,234.06 - Step 6: Final answer
x = 215,594.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.