Finding the Fourth Proportional to 151,257.81, 208,727.64 and 83,261.55
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Solution
The fourth proportional to 151,257.81, 208,727.64 and 83,261.55 is: 114,896.46
Step by Step Solution
- Step 1: Write the proportion equation
151,257.81 : 208,727.64 = 83,261.55 : x - Step 2: Convert to fraction form
151,257.81/208,727.64 = 83,261.55/x - Step 3: Cross multiply
151,257.81x = 208,727.64 × 83,261.55 - Step 4: Simplify right side
151,257.81x = 17,378,986,834.24 - Step 5: Solve for x
x = 17,378,986,834.24/151,257.81 - Step 6: Final answer
x = 114,896.46
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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.