Finding the Fourth Proportional to 223,102.53, 307,879.26 and 121,128.93
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Solution
The fourth proportional to 223,102.53, 307,879.26 and 121,128.93 is: 167,156.71
Step by Step Solution
- Step 1: Write the proportion equation
223,102.53 : 307,879.26 = 121,128.93 : x - Step 2: Convert to fraction form
223,102.53/307,879.26 = 121,128.93/x - Step 3: Cross multiply
223,102.53x = 307,879.26 × 121,128.93 - Step 4: Simplify right side
223,102.53x = 37,293,085,332.99 - Step 5: Solve for x
x = 37,293,085,332.99/223,102.53 - Step 6: Final answer
x = 167,156.71
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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.