Finding the Fourth Proportional to 213,510.36, 294,614.20 and 121,632.06
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Solution
The fourth proportional to 213,510.36, 294,614.20 and 121,632.06 is: 167,835.09
Step by Step Solution
- Step 1: Write the proportion equation
213,510.36 : 294,614.20 = 121,632.06 : x - Step 2: Convert to fraction form
213,510.36/294,614.20 = 121,632.06/x - Step 3: Cross multiply
213,510.36x = 294,614.20 × 121,632.06 - Step 4: Simplify right side
213,510.36x = 35,834,531,443.09 - Step 5: Solve for x
x = 35,834,531,443.09/213,510.36 - Step 6: Final answer
x = 167,835.09
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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.