Finding the Fourth Proportional to 186,890.09, 257,896.51 and 106,312.80
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Solution
The fourth proportional to 186,890.09, 257,896.51 and 106,312.80 is: 146,704.95
Step by Step Solution
- Step 1: Write the proportion equation
186,890.09 : 257,896.51 = 106,312.80 : x - Step 2: Convert to fraction form
186,890.09/257,896.51 = 106,312.80/x - Step 3: Cross multiply
186,890.09x = 257,896.51 × 106,312.80 - Step 4: Simplify right side
186,890.09x = 27,417,700,789.66 - Step 5: Solve for x
x = 27,417,700,789.66/186,890.09 - Step 6: Final answer
x = 146,704.95
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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.