Finding the Fourth Proportional to 151,907.76, 209,630.16 and 88,246.08
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Solution
The fourth proportional to 151,907.76, 209,630.16 and 88,246.08 is: 121,778.11
Step by Step Solution
- Step 1: Write the proportion equation
151,907.76 : 209,630.16 = 88,246.08 : x - Step 2: Convert to fraction form
151,907.76/209,630.16 = 88,246.08/x - Step 3: Cross multiply
151,907.76x = 209,630.16 × 88,246.08 - Step 4: Simplify right side
151,907.76x = 18,499,039,869.77 - Step 5: Solve for x
x = 18,499,039,869.77/151,907.76 - Step 6: Final answer
x = 121,778.11
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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.