Finding the Fourth Proportional to 257,187.24, 354,920.94 and 142,469.28
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Solution
The fourth proportional to 257,187.24, 354,920.94 and 142,469.28 is: 196,609.02
Step by Step Solution
- Step 1: Write the proportion equation
257,187.24 : 354,920.94 = 142,469.28 : x - Step 2: Convert to fraction form
257,187.24/354,920.94 = 142,469.28/x - Step 3: Cross multiply
257,187.24x = 354,920.94 × 142,469.28 - Step 4: Simplify right side
257,187.24x = 50,565,330,778.72 - Step 5: Solve for x
x = 50,565,330,778.72/257,187.24 - Step 6: Final answer
x = 196,609.02
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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.