Finding the Fourth Proportional to 230,064.26, 317,487.96 and 128,087.08
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Solution
The fourth proportional to 230,064.26, 317,487.96 and 128,087.08 is: 176,759.77
Step by Step Solution
- Step 1: Write the proportion equation
230,064.26 : 317,487.96 = 128,087.08 : x - Step 2: Convert to fraction form
230,064.26/317,487.96 = 128,087.08/x - Step 3: Cross multiply
230,064.26x = 317,487.96 × 128,087.08 - Step 4: Simplify right side
230,064.26x = 40,666,105,731.56 - Step 5: Solve for x
x = 40,666,105,731.56/230,064.26 - Step 6: Final answer
x = 176,759.77
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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.