Finding the Fourth Proportional to 280,014.08, 420,020.30 and 69,652.01
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Solution
The fourth proportional to 280,014.08, 420,020.30 and 69,652.01 is: 104,477.80
Step by Step Solution
- Step 1: Write the proportion equation
280,014.08 : 420,020.30 = 69,652.01 : x - Step 2: Convert to fraction form
280,014.08/420,020.30 = 69,652.01/x - Step 3: Cross multiply
280,014.08x = 420,020.30 × 69,652.01 - Step 4: Simplify right side
280,014.08x = 29,255,255,687.44 - Step 5: Solve for x
x = 29,255,255,687.44/280,014.08 - Step 6: Final answer
x = 104,477.80
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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.