Finding the Fourth Proportional to 217,828.83, 326,763.41 and 84,719.19
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Solution
The fourth proportional to 217,828.83, 326,763.41 and 84,719.19 is: 127,086.63
Step by Step Solution
- Step 1: Write the proportion equation
217,828.83 : 326,763.41 = 84,719.19 : x - Step 2: Convert to fraction form
217,828.83/326,763.41 = 84,719.19/x - Step 3: Cross multiply
217,828.83x = 326,763.41 × 84,719.19 - Step 4: Simplify right side
217,828.83x = 27,683,130,993.24 - Step 5: Solve for x
x = 27,683,130,993.24/217,828.83 - Step 6: Final answer
x = 127,086.63
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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.