Finding the Fourth Proportional to 150,188.06, 207,305.64 and 86,568.20
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Solution
The fourth proportional to 150,188.06, 207,305.64 and 86,568.20 is: 119,490.70
Step by Step Solution
- Step 1: Write the proportion equation
150,188.06 : 207,305.64 = 86,568.20 : x - Step 2: Convert to fraction form
150,188.06/207,305.64 = 86,568.20/x - Step 3: Cross multiply
150,188.06x = 207,305.64 × 86,568.20 - Step 4: Simplify right side
150,188.06x = 17,946,076,104.65 - Step 5: Solve for x
x = 17,946,076,104.65/150,188.06 - Step 6: Final answer
x = 119,490.70
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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.