Finding the Fourth Proportional to 280,362.08, 420,549.08 and 100,459.24
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Solution
The fourth proportional to 280,362.08, 420,549.08 and 100,459.24 is: 150,690.99
Step by Step Solution
- Step 1: Write the proportion equation
280,362.08 : 420,549.08 = 100,459.24 : x - Step 2: Convert to fraction form
280,362.08/420,549.08 = 100,459.24/x - Step 3: Cross multiply
280,362.08x = 420,549.08 × 100,459.24 - Step 4: Simplify right side
280,362.08x = 42,248,039,405.83 - Step 5: Solve for x
x = 42,248,039,405.83/280,362.08 - Step 6: Final answer
x = 150,690.99
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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.