Finding the Fourth Proportional to 190,190.12, 262,477.14 and 105,315.08
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Solution
The fourth proportional to 190,190.12, 262,477.14 and 105,315.08 is: 145,342.99
Step by Step Solution
- Step 1: Write the proportion equation
190,190.12 : 262,477.14 = 105,315.08 : x - Step 2: Convert to fraction form
190,190.12/262,477.14 = 105,315.08/x - Step 3: Cross multiply
190,190.12x = 262,477.14 × 105,315.08 - Step 4: Simplify right side
190,190.12x = 27,642,800,997.27 - Step 5: Solve for x
x = 27,642,800,997.27/190,190.12 - Step 6: Final answer
x = 145,342.99
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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.