Finding the Fourth Proportional to 256,502.24, 384,756.24 and 79,007.84
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Solution
The fourth proportional to 256,502.24, 384,756.24 and 79,007.84 is: 118,512.65
Step by Step Solution
- Step 1: Write the proportion equation
256,502.24 : 384,756.24 = 79,007.84 : x - Step 2: Convert to fraction form
256,502.24/384,756.24 = 79,007.84/x - Step 3: Cross multiply
256,502.24x = 384,756.24 × 79,007.84 - Step 4: Simplify right side
256,502.24x = 30,398,759,448.92 - Step 5: Solve for x
x = 30,398,759,448.92/256,502.24 - Step 6: Final answer
x = 118,512.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.