Finding the Third Proportional to 129,389.63 and 279,555.75
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Solution
The third proportional to 129,389.63 and 279,555.75 is: 604,000.65
Step by Step Solution
- Step 1: Write the proportion equation
129,389.63 : 279,555.75 = 279,555.75 : x - Step 2: Convert to fraction form
129,389.63/279,555.75 = 279,555.75/x - Step 3: Cross multiply
129,389.63x = 279,555.75 × 279,555.75 - Step 4: Simplify right side
129,389.63x = 78,151,417,358.06 - Step 5: Solve for x
x = 78,151,417,358.06/129,389.63 - Step 6: Final answer
x = 604,000.65
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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.