Finding the Fourth Proportional to 370,979.12, 511,954.08 and 201,213.20
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Solution
The fourth proportional to 370,979.12, 511,954.08 and 201,213.20 is: 277,675.79
Step by Step Solution
- Step 1: Write the proportion equation
370,979.12 : 511,954.08 = 201,213.20 : x - Step 2: Convert to fraction form
370,979.12/511,954.08 = 201,213.20/x - Step 3: Cross multiply
370,979.12x = 511,954.08 × 201,213.20 - Step 4: Simplify right side
370,979.12x = 103,011,918,689.86 - Step 5: Solve for x
x = 103,011,918,689.86/370,979.12 - Step 6: Final answer
x = 277,675.79
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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.