Finding the Fourth Proportional to 217,971.36, 326,958.16 and 66,169.76
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Solution
The fourth proportional to 217,971.36, 326,958.16 and 66,169.76 is: 99,254.98
Step by Step Solution
- Step 1: Write the proportion equation
217,971.36 : 326,958.16 = 66,169.76 : x - Step 2: Convert to fraction form
217,971.36/326,958.16 = 66,169.76/x - Step 3: Cross multiply
217,971.36x = 326,958.16 × 66,169.76 - Step 4: Simplify right side
217,971.36x = 21,634,742,977.24 - Step 5: Solve for x
x = 21,634,742,977.24/217,971.36 - Step 6: Final answer
x = 99,254.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.