Finding the Fourth Proportional to 178,482.26, 246,401.45 and 137,856.84
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Solution
The fourth proportional to 178,482.26, 246,401.45 and 137,856.84 is: 190,316.54
Step by Step Solution
- Step 1: Write the proportion equation
178,482.26 : 246,401.45 = 137,856.84 : x - Step 2: Convert to fraction form
178,482.26/246,401.45 = 137,856.84/x - Step 3: Cross multiply
178,482.26x = 246,401.45 × 137,856.84 - Step 4: Simplify right side
178,482.26x = 33,968,124,579.13 - Step 5: Solve for x
x = 33,968,124,579.13/178,482.26 - Step 6: Final answer
x = 190,316.54
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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.