Finding the Fourth Proportional to 415,319.70, 622,749.15 and 165,719.70
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Solution
The fourth proportional to 415,319.70, 622,749.15 and 165,719.70 is: 248,487.62
Step by Step Solution
- Step 1: Write the proportion equation
415,319.70 : 622,749.15 = 165,719.70 : x - Step 2: Convert to fraction form
415,319.70/622,749.15 = 165,719.70/x - Step 3: Cross multiply
415,319.70x = 622,749.15 × 165,719.70 - Step 4: Simplify right side
415,319.70x = 103,201,802,313.26 - Step 5: Solve for x
x = 103,201,802,313.26/415,319.70 - Step 6: Final answer
x = 248,487.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.