Finding the Fourth Proportional to 420,162.17, 630,325.20 and 135,923.18
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Solution
The fourth proportional to 420,162.17, 630,325.20 and 135,923.18 is: 203,911.28
Step by Step Solution
- Step 1: Write the proportion equation
420,162.17 : 630,325.20 = 135,923.18 : x - Step 2: Convert to fraction form
420,162.17/630,325.20 = 135,923.18/x - Step 3: Cross multiply
420,162.17x = 630,325.20 × 135,923.18 - Step 4: Simplify right side
420,162.17x = 85,675,805,618.14 - Step 5: Solve for x
x = 85,675,805,618.14/420,162.17 - Step 6: Final answer
x = 203,911.28
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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.