Finding the Fourth Proportional to 157,467.40, 236,201.10 and 143,689.30
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Solution
The fourth proportional to 157,467.40, 236,201.10 and 143,689.30 is: 215,533.95
Step by Step Solution
- Step 1: Write the proportion equation
157,467.40 : 236,201.10 = 143,689.30 : x - Step 2: Convert to fraction form
157,467.40/236,201.10 = 143,689.30/x - Step 3: Cross multiply
157,467.40x = 236,201.10 × 143,689.30 - Step 4: Simplify right side
157,467.40x = 33,939,570,718.23 - Step 5: Solve for x
x = 33,939,570,718.23/157,467.40 - Step 6: Final answer
x = 215,533.95
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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.