Finding the Fourth Proportional to 210,335.12, 315,502.68 and 111,816.08
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Solution
The fourth proportional to 210,335.12, 315,502.68 and 111,816.08 is: 167,724.12
Step by Step Solution
- Step 1: Write the proportion equation
210,335.12 : 315,502.68 = 111,816.08 : x - Step 2: Convert to fraction form
210,335.12/315,502.68 = 111,816.08/x - Step 3: Cross multiply
210,335.12x = 315,502.68 × 111,816.08 - Step 4: Simplify right side
210,335.12x = 35,278,272,907.09 - Step 5: Solve for x
x = 35,278,272,907.09/210,335.12 - Step 6: Final answer
x = 167,724.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.