Finding the Fourth Proportional to 279,889.08, 419,713.68 and 130,113.75
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Solution
The fourth proportional to 279,889.08, 419,713.68 and 130,113.75 is: 195,114.87
Step by Step Solution
- Step 1: Write the proportion equation
279,889.08 : 419,713.68 = 130,113.75 : x - Step 2: Convert to fraction form
279,889.08/419,713.68 = 130,113.75/x - Step 3: Cross multiply
279,889.08x = 419,713.68 × 130,113.75 - Step 4: Simplify right side
279,889.08x = 54,610,520,831.10 - Step 5: Solve for x
x = 54,610,520,831.10/279,889.08 - Step 6: Final answer
x = 195,114.87
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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.