Finding the Fourth Proportional to 210,559.68, 290,565.60 and 115,066.08
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Solution
The fourth proportional to 210,559.68, 290,565.60 and 115,066.08 is: 158,787.50
Step by Step Solution
- Step 1: Write the proportion equation
210,559.68 : 290,565.60 = 115,066.08 : x - Step 2: Convert to fraction form
210,559.68/290,565.60 = 115,066.08/x - Step 3: Cross multiply
210,559.68x = 290,565.60 × 115,066.08 - Step 4: Simplify right side
210,559.68x = 33,434,244,574.85 - Step 5: Solve for x
x = 33,434,244,574.85/210,559.68 - Step 6: Final answer
x = 158,787.50
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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.