Finding the Fourth Proportional to 225,080.79, 310,576.97 and 129,569.02
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Solution
The fourth proportional to 225,080.79, 310,576.97 and 129,569.02 is: 178,785.38
Step by Step Solution
- Step 1: Write the proportion equation
225,080.79 : 310,576.97 = 129,569.02 : x - Step 2: Convert to fraction form
225,080.79/310,576.97 = 129,569.02/x - Step 3: Cross multiply
225,080.79x = 310,576.97 × 129,569.02 - Step 4: Simplify right side
225,080.79x = 40,241,153,961.39 - Step 5: Solve for x
x = 40,241,153,961.39/225,080.79 - Step 6: Final answer
x = 178,785.38
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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.