Finding the Fourth Proportional to 297,843.76, 411,027.08 and 161,878.03
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Solution
The fourth proportional to 297,843.76, 411,027.08 and 161,878.03 is: 223,393.14
Step by Step Solution
- Step 1: Write the proportion equation
297,843.76 : 411,027.08 = 161,878.03 : x - Step 2: Convert to fraction form
297,843.76/411,027.08 = 161,878.03/x - Step 3: Cross multiply
297,843.76x = 411,027.08 × 161,878.03 - Step 4: Simplify right side
297,843.76x = 66,536,253,987.05 - Step 5: Solve for x
x = 66,536,253,987.05/297,843.76 - Step 6: Final answer
x = 223,393.14
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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.