Finding the Fourth Proportional to 230,584.77, 318,207.41 and 128,616.84
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Solution
The fourth proportional to 230,584.77, 318,207.41 and 128,616.84 is: 177,491.48
Step by Step Solution
- Step 1: Write the proportion equation
230,584.77 : 318,207.41 = 128,616.84 : x - Step 2: Convert to fraction form
230,584.77/318,207.41 = 128,616.84/x - Step 3: Cross multiply
230,584.77x = 318,207.41 × 128,616.84 - Step 4: Simplify right side
230,584.77x = 40,926,831,538.78 - Step 5: Solve for x
x = 40,926,831,538.78/230,584.77 - Step 6: Final answer
x = 177,491.48
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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.