Finding the Fourth Proportional to 280,014.37, 420,023.08 and 69,652.31
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Solution
The fourth proportional to 280,014.37, 420,023.08 and 69,652.31 is: 104,478.84
Step by Step Solution
- Step 1: Write the proportion equation
280,014.37 : 420,023.08 = 69,652.31 : x - Step 2: Convert to fraction form
280,014.37/420,023.08 = 69,652.31/x - Step 3: Cross multiply
280,014.37x = 420,023.08 × 69,652.31 - Step 4: Simplify right side
280,014.37x = 29,255,577,427.05 - Step 5: Solve for x
x = 29,255,577,427.05/280,014.37 - Step 6: Final answer
x = 104,478.84
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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.