Finding the Fourth Proportional to 380,112.12, 524,551.68 and 210,355.56
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Solution
The fourth proportional to 380,112.12, 524,551.68 and 210,355.56 is: 290,288.99
Step by Step Solution
- Step 1: Write the proportion equation
380,112.12 : 524,551.68 = 210,355.56 : x - Step 2: Convert to fraction form
380,112.12/524,551.68 = 210,355.56/x - Step 3: Cross multiply
380,112.12x = 524,551.68 × 210,355.56 - Step 4: Simplify right side
380,112.12x = 110,342,362,395.34 - Step 5: Solve for x
x = 110,342,362,395.34/380,112.12 - Step 6: Final answer
x = 290,288.99
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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.