Finding the Fourth Proportional to 282,259.44, 389,515.68 and 154,927.44
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Solution
The fourth proportional to 282,259.44, 389,515.68 and 154,927.44 is: 213,798.58
Step by Step Solution
- Step 1: Write the proportion equation
282,259.44 : 389,515.68 = 154,927.44 : x - Step 2: Convert to fraction form
282,259.44/389,515.68 = 154,927.44/x - Step 3: Cross multiply
282,259.44x = 389,515.68 × 154,927.44 - Step 4: Simplify right side
282,259.44x = 60,346,667,142.26 - Step 5: Solve for x
x = 60,346,667,142.26/282,259.44 - Step 6: Final answer
x = 213,798.58
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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.