Finding the Fourth Proportional to 420,163.20, 630,244.80 and 302,065.20
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Solution
The fourth proportional to 420,163.20, 630,244.80 and 302,065.20 is: 453,097.80
Step by Step Solution
- Step 1: Write the proportion equation
420,163.20 : 630,244.80 = 302,065.20 : x - Step 2: Convert to fraction form
420,163.20/630,244.80 = 302,065.20/x - Step 3: Cross multiply
420,163.20x = 630,244.80 × 302,065.20 - Step 4: Simplify right side
420,163.20x = 190,375,021,560.96 - Step 5: Solve for x
x = 190,375,021,560.96/420,163.20 - Step 6: Final answer
x = 453,097.80
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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.