Finding the Fourth Proportional to 210,964.23, 291,130.74 and 115,471.44
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Solution
The fourth proportional to 210,964.23, 291,130.74 and 115,471.44 is: 159,350.64
Step by Step Solution
- Step 1: Write the proportion equation
210,964.23 : 291,130.74 = 115,471.44 : x - Step 2: Convert to fraction form
210,964.23/291,130.74 = 115,471.44/x - Step 3: Cross multiply
210,964.23x = 291,130.74 × 115,471.44 - Step 4: Simplify right side
210,964.23x = 33,617,285,776.07 - Step 5: Solve for x
x = 33,617,285,776.07/210,964.23 - Step 6: Final answer
x = 159,350.64
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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.