Finding the Fourth Proportional to 155,349.93, 214,380.86 and 87,366.88
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Solution
The fourth proportional to 155,349.93, 214,380.86 and 87,366.88 is: 120,565.15
Step by Step Solution
- Step 1: Write the proportion equation
155,349.93 : 214,380.86 = 87,366.88 : x - Step 2: Convert to fraction form
155,349.93/214,380.86 = 87,366.88/x - Step 3: Cross multiply
155,349.93x = 214,380.86 × 87,366.88 - Step 4: Simplify right side
155,349.93x = 18,729,786,958.13 - Step 5: Solve for x
x = 18,729,786,958.13/155,349.93 - Step 6: Final answer
x = 120,565.15
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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.