Finding the Fourth Proportional to 210,922.24, 291,081.36 and 115,437.28
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Solution
The fourth proportional to 210,922.24, 291,081.36 and 115,437.28 is: 159,308.19
Step by Step Solution
- Step 1: Write the proportion equation
210,922.24 : 291,081.36 = 115,437.28 : x - Step 2: Convert to fraction form
210,922.24/291,081.36 = 115,437.28/x - Step 3: Cross multiply
210,922.24x = 291,081.36 × 115,437.28 - Step 4: Simplify right side
210,922.24x = 33,601,640,457.10 - Step 5: Solve for x
x = 33,601,640,457.10/210,922.24 - Step 6: Final answer
x = 159,308.19
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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.