Finding the Fourth Proportional to 344,138.70, 474,987.36 and 191,229.42
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Solution
The fourth proportional to 344,138.70, 474,987.36 and 191,229.42 is: 263,938.81
Step by Step Solution
- Step 1: Write the proportion equation
344,138.70 : 474,987.36 = 191,229.42 : x - Step 2: Convert to fraction form
344,138.70/474,987.36 = 191,229.42/x - Step 3: Cross multiply
344,138.70x = 474,987.36 × 191,229.42 - Step 4: Simplify right side
344,138.70x = 90,831,557,360.13 - Step 5: Solve for x
x = 90,831,557,360.13/344,138.70 - Step 6: Final answer
x = 263,938.81
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1.5x scale
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.