Finding the Fourth Proportional to 243,387.24, 365,115.48 and 74,921.62
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Solution
The fourth proportional to 243,387.24, 365,115.48 and 74,921.62 is: 112,393.09
Step by Step Solution
- Step 1: Write the proportion equation
243,387.24 : 365,115.48 = 74,921.62 : x - Step 2: Convert to fraction form
243,387.24/365,115.48 = 74,921.62/x - Step 3: Cross multiply
243,387.24x = 365,115.48 × 74,921.62 - Step 4: Simplify right side
243,387.24x = 27,355,043,248.68 - Step 5: Solve for x
x = 27,355,043,248.68/243,387.24 - Step 6: Final answer
x = 112,393.09
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1.5x scale
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.