Finding the Fourth Proportional to 213,614.25, 294,781.83 and 118,117.68
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Solution
The fourth proportional to 213,614.25, 294,781.83 and 118,117.68 is: 162,999.17
Step by Step Solution
- Step 1: Write the proportion equation
213,614.25 : 294,781.83 = 118,117.68 : x - Step 2: Convert to fraction form
213,614.25/294,781.83 = 118,117.68/x - Step 3: Cross multiply
213,614.25x = 294,781.83 × 118,117.68 - Step 4: Simplify right side
213,614.25x = 34,818,944,538.21 - Step 5: Solve for x
x = 34,818,944,538.21/213,614.25 - Step 6: Final answer
x = 162,999.17
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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.