Finding the Fourth Proportional to 420,252.64, 630,383.51 and 120,735.70
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Solution
The fourth proportional to 420,252.64, 630,383.51 and 120,735.70 is: 181,104.86
Step by Step Solution
- Step 1: Write the proportion equation
420,252.64 : 630,383.51 = 120,735.70 : x - Step 2: Convert to fraction form
420,252.64/630,383.51 = 120,735.70/x - Step 3: Cross multiply
420,252.64x = 630,383.51 × 120,735.70 - Step 4: Simplify right side
420,252.64x = 76,109,793,074.19 - Step 5: Solve for x
x = 76,109,793,074.19/420,252.64 - Step 6: Final answer
x = 181,104.86
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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.