Finding the Fourth Proportional to 207,639.20, 291,482.20 and 207,639.20
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Solution
The fourth proportional to 207,639.20, 291,482.20 and 207,639.20 is: 291,482.20
Step by Step Solution
- Step 1: Write the proportion equation
207,639.20 : 291,482.20 = 207,639.20 : x - Step 2: Convert to fraction form
207,639.20/291,482.20 = 207,639.20/x - Step 3: Cross multiply
207,639.20x = 291,482.20 × 207,639.20 - Step 4: Simplify right side
207,639.20x = 60,523,130,822.24 - Step 5: Solve for x
x = 60,523,130,822.24/207,639.20 - Step 6: Final answer
x = 291,482.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.