Finding the Fourth Proportional to 257,709.41, 386,471.50 and 89,183.98
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Solution
The fourth proportional to 257,709.41, 386,471.50 and 89,183.98 is: 133,743.92
Step by Step Solution
- Step 1: Write the proportion equation
257,709.41 : 386,471.50 = 89,183.98 : x - Step 2: Convert to fraction form
257,709.41/386,471.50 = 89,183.98/x - Step 3: Cross multiply
257,709.41x = 386,471.50 × 89,183.98 - Step 4: Simplify right side
257,709.41x = 34,467,066,526.57 - Step 5: Solve for x
x = 34,467,066,526.57/257,709.41 - Step 6: Final answer
x = 133,743.92
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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.