Finding the Fourth Proportional to 217,767.36, 300,509.28 and 122,272.32
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Solution
The fourth proportional to 217,767.36, 300,509.28 and 122,272.32 is: 168,730.37
Step by Step Solution
- Step 1: Write the proportion equation
217,767.36 : 300,509.28 = 122,272.32 : x - Step 2: Convert to fraction form
217,767.36/300,509.28 = 122,272.32/x - Step 3: Cross multiply
217,767.36x = 300,509.28 × 122,272.32 - Step 4: Simplify right side
217,767.36x = 36,743,966,847.13 - Step 5: Solve for x
x = 36,743,966,847.13/217,767.36 - Step 6: Final answer
x = 168,730.37
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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.