Finding the Fourth Proportional to 186,908.28, 257,930.12 and 106,334.08
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Solution
The fourth proportional to 186,908.28, 257,930.12 and 106,334.08 is: 146,739.15
Step by Step Solution
- Step 1: Write the proportion equation
186,908.28 : 257,930.12 = 106,334.08 : x - Step 2: Convert to fraction form
186,908.28/257,930.12 = 106,334.08/x - Step 3: Cross multiply
186,908.28x = 257,930.12 × 106,334.08 - Step 4: Simplify right side
186,908.28x = 27,426,761,635.50 - Step 5: Solve for x
x = 27,426,761,635.50/186,908.28 - Step 6: Final answer
x = 146,739.15
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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.