Finding the Fourth Proportional to 257,723.99, 386,430.66 and 115,543.55
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Solution
The fourth proportional to 257,723.99, 386,430.66 and 115,543.55 is: 173,245.69
Step by Step Solution
- Step 1: Write the proportion equation
257,723.99 : 386,430.66 = 115,543.55 : x - Step 2: Convert to fraction form
257,723.99/386,430.66 = 115,543.55/x - Step 3: Cross multiply
257,723.99x = 386,430.66 × 115,543.55 - Step 4: Simplify right side
257,723.99x = 44,649,570,285.24 - Step 5: Solve for x
x = 44,649,570,285.24/257,723.99 - Step 6: Final answer
x = 173,245.69
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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.