Finding the Third Proportional to 128,358.84 and 286,232.06
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Solution
The third proportional to 128,358.84 and 286,232.06 is: 638,279.31
Step by Step Solution
- Step 1: Write the proportion equation
128,358.84 : 286,232.06 = 286,232.06 : x - Step 2: Convert to fraction form
128,358.84/286,232.06 = 286,232.06/x - Step 3: Cross multiply
128,358.84x = 286,232.06 × 286,232.06 - Step 4: Simplify right side
128,358.84x = 81,928,793,603.00 - Step 5: Solve for x
x = 81,928,793,603.00/128,358.84 - Step 6: Final answer
x = 638,279.31
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Why These Related Problems?
These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.