Finding the Third Proportional to 128,979.84 and 195,417.56
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Solution
The third proportional to 128,979.84 and 195,417.56 is: 296,077.45
Step by Step Solution
- Step 1: Write the proportion equation
128,979.84 : 195,417.56 = 195,417.56 : x - Step 2: Convert to fraction form
128,979.84/195,417.56 = 195,417.56/x - Step 3: Cross multiply
128,979.84x = 195,417.56 × 195,417.56 - Step 4: Simplify right side
128,979.84x = 38,188,023,733.44 - Step 5: Solve for x
x = 38,188,023,733.44/128,979.84 - Step 6: Final answer
x = 296,077.45
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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.