Finding the Fourth Proportional to 155,336.16, 214,338.89 and 87,349.08
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Solution
The fourth proportional to 155,336.16, 214,338.89 and 87,349.08 is: 120,527.66
Step by Step Solution
- Step 1: Write the proportion equation
155,336.16 : 214,338.89 = 87,349.08 : x - Step 2: Convert to fraction form
155,336.16/214,338.89 = 87,349.08/x - Step 3: Cross multiply
155,336.16x = 214,338.89 × 87,349.08 - Step 4: Simplify right side
155,336.16x = 18,722,304,331.25 - Step 5: Solve for x
x = 18,722,304,331.25/155,336.16 - Step 6: Final answer
x = 120,527.66
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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.