Finding the Fourth Proportional to 202,204.80, 303,307.20 and 139,219.20
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Solution
The fourth proportional to 202,204.80, 303,307.20 and 139,219.20 is: 208,828.80
Step by Step Solution
- Step 1: Write the proportion equation
202,204.80 : 303,307.20 = 139,219.20 : x - Step 2: Convert to fraction form
202,204.80/303,307.20 = 139,219.20/x - Step 3: Cross multiply
202,204.80x = 303,307.20 × 139,219.20 - Step 4: Simplify right side
202,204.80x = 42,226,185,738.24 - Step 5: Solve for x
x = 42,226,185,738.24/202,204.80 - Step 6: Final answer
x = 208,828.80
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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.