Finding the Fourth Proportional to 257,778.36, 386,542.53 and 151,197.14
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Solution
The fourth proportional to 257,778.36, 386,542.53 and 151,197.14 is: 226,722.39
Step by Step Solution
- Step 1: Write the proportion equation
257,778.36 : 386,542.53 = 151,197.14 : x - Step 2: Convert to fraction form
257,778.36/386,542.53 = 151,197.14/x - Step 3: Cross multiply
257,778.36x = 386,542.53 × 151,197.14 - Step 4: Simplify right side
257,778.36x = 58,444,125,990.72 - Step 5: Solve for x
x = 58,444,125,990.72/257,778.36 - Step 6: Final answer
x = 226,722.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.