Finding the Fourth Proportional to 290,980.94, 401,325.84 and 189,039.02
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Solution
The fourth proportional to 290,980.94, 401,325.84 and 189,039.02 is: 260,725.82
Step by Step Solution
- Step 1: Write the proportion equation
290,980.94 : 401,325.84 = 189,039.02 : x - Step 2: Convert to fraction form
290,980.94/401,325.84 = 189,039.02/x - Step 3: Cross multiply
290,980.94x = 401,325.84 × 189,039.02 - Step 4: Simplify right side
290,980.94x = 75,866,241,487.65 - Step 5: Solve for x
x = 75,866,241,487.65/290,980.94 - Step 6: Final answer
x = 260,725.82
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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.