Finding the Fourth Proportional to 230,242.56, 317,729.91 and 128,267.88
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Solution
The fourth proportional to 230,242.56, 317,729.91 and 128,267.88 is: 177,006.99
Step by Step Solution
- Step 1: Write the proportion equation
230,242.56 : 317,729.91 = 128,267.88 : x - Step 2: Convert to fraction form
230,242.56/317,729.91 = 128,267.88/x - Step 3: Cross multiply
230,242.56x = 317,729.91 × 128,267.88 - Step 4: Simplify right side
230,242.56x = 40,754,541,968.29 - Step 5: Solve for x
x = 40,754,541,968.29/230,242.56 - Step 6: Final answer
x = 177,006.99
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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.