Finding the Fourth Proportional to 230,467.65, 345,857.76 and 80,709.18
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Solution
The fourth proportional to 230,467.65, 345,857.76 and 80,709.18 is: 121,118.50
Step by Step Solution
- Step 1: Write the proportion equation
230,467.65 : 345,857.76 = 80,709.18 : x - Step 2: Convert to fraction form
230,467.65/345,857.76 = 80,709.18/x - Step 3: Cross multiply
230,467.65x = 345,857.76 × 80,709.18 - Step 4: Simplify right side
230,467.65x = 27,913,896,206.24 - Step 5: Solve for x
x = 27,913,896,206.24/230,467.65 - Step 6: Final answer
x = 121,118.50
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1.5x scale
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.