Finding the Fourth Proportional to 213,008.14, 293,898.81 and 130,201.21
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Solution
The fourth proportional to 213,008.14, 293,898.81 and 130,201.21 is: 179,645.63
Step by Step Solution
- Step 1: Write the proportion equation
213,008.14 : 293,898.81 = 130,201.21 : x - Step 2: Convert to fraction form
213,008.14/293,898.81 = 130,201.21/x - Step 3: Cross multiply
213,008.14x = 293,898.81 × 130,201.21 - Step 4: Simplify right side
213,008.14x = 38,265,980,679.56 - Step 5: Solve for x
x = 38,265,980,679.56/213,008.14 - Step 6: Final answer
x = 179,645.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.