Finding the Fourth Proportional to 207,932.99, 286,947.54 and 112,439.68
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Solution
The fourth proportional to 207,932.99, 286,947.54 and 112,439.68 is: 155,166.77
Step by Step Solution
- Step 1: Write the proportion equation
207,932.99 : 286,947.54 = 112,439.68 : x - Step 2: Convert to fraction form
207,932.99/286,947.54 = 112,439.68/x - Step 3: Cross multiply
207,932.99x = 286,947.54 × 112,439.68 - Step 4: Simplify right side
207,932.99x = 32,264,288,857.02 - Step 5: Solve for x
x = 32,264,288,857.02/207,932.99 - Step 6: Final answer
x = 155,166.77
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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.