Finding the Fourth Proportional to 343,485.09, 474,011.15 and 190,512.65
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Solution
The fourth proportional to 343,485.09, 474,011.15 and 190,512.65 is: 262,908.41
Step by Step Solution
- Step 1: Write the proportion equation
343,485.09 : 474,011.15 = 190,512.65 : x - Step 2: Convert to fraction form
343,485.09/474,011.15 = 190,512.65/x - Step 3: Cross multiply
343,485.09x = 474,011.15 × 190,512.65 - Step 4: Simplify right side
343,485.09x = 90,305,120,316.05 - Step 5: Solve for x
x = 90,305,120,316.05/343,485.09 - Step 6: Final answer
x = 262,908.41
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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.