Finding the Fourth Proportional to 178,720.03, 246,496.98 and 121,403.55
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Solution
The fourth proportional to 178,720.03, 246,496.98 and 121,403.55 is: 167,444.07
Step by Step Solution
- Step 1: Write the proportion equation
178,720.03 : 246,496.98 = 121,403.55 : x - Step 2: Convert to fraction form
178,720.03/246,496.98 = 121,403.55/x - Step 3: Cross multiply
178,720.03x = 246,496.98 × 121,403.55 - Step 4: Simplify right side
178,720.03x = 29,925,608,436.28 - Step 5: Solve for x
x = 29,925,608,436.28/178,720.03 - Step 6: Final answer
x = 167,444.07
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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.