Finding the Fourth Proportional to 210,242.25, 290,134.58 and 134,790.75
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Solution
The fourth proportional to 210,242.25, 290,134.58 and 134,790.75 is: 186,011.41
Step by Step Solution
- Step 1: Write the proportion equation
210,242.25 : 290,134.58 = 134,790.75 : x - Step 2: Convert to fraction form
210,242.25/290,134.58 = 134,790.75/x - Step 3: Cross multiply
210,242.25x = 290,134.58 × 134,790.75 - Step 4: Simplify right side
210,242.25x = 39,107,456,965.18 - Step 5: Solve for x
x = 39,107,456,965.18/210,242.25 - Step 6: Final answer
x = 186,011.41
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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.