Finding the Fourth Proportional to 275,214.80, 412,822.20 and 135,246.80
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Solution
The fourth proportional to 275,214.80, 412,822.20 and 135,246.80 is: 202,870.20
Step by Step Solution
- Step 1: Write the proportion equation
275,214.80 : 412,822.20 = 135,246.80 : x - Step 2: Convert to fraction form
275,214.80/412,822.20 = 135,246.80/x - Step 3: Cross multiply
275,214.80x = 412,822.20 × 135,246.80 - Step 4: Simplify right side
275,214.80x = 55,832,881,518.96 - Step 5: Solve for x
x = 55,832,881,518.96/275,214.80 - Step 6: Final answer
x = 202,870.20
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Similar ratio
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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.