Finding the Fourth Proportional to 420,549.84, 630,808.29 and 140,067.09
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Solution
The fourth proportional to 420,549.84, 630,808.29 and 140,067.09 is: 210,095.15
Step by Step Solution
- Step 1: Write the proportion equation
420,549.84 : 630,808.29 = 140,067.09 : x - Step 2: Convert to fraction form
420,549.84/630,808.29 = 140,067.09/x - Step 3: Cross multiply
420,549.84x = 630,808.29 × 140,067.09 - Step 4: Simplify right side
420,549.84x = 88,355,481,528.18 - Step 5: Solve for x
x = 88,355,481,528.18/420,549.84 - Step 6: Final answer
x = 210,095.15
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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.