Finding the Fourth Proportional to 205,235.20, 307,852.80 and 94,643.20
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Solution
The fourth proportional to 205,235.20, 307,852.80 and 94,643.20 is: 141,964.80
Step by Step Solution
- Step 1: Write the proportion equation
205,235.20 : 307,852.80 = 94,643.20 : x - Step 2: Convert to fraction form
205,235.20/307,852.80 = 94,643.20/x - Step 3: Cross multiply
205,235.20x = 307,852.80 × 94,643.20 - Step 4: Simplify right side
205,235.20x = 29,136,174,120.96 - Step 5: Solve for x
x = 29,136,174,120.96/205,235.20 - Step 6: Final answer
x = 141,964.80
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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.