Finding the Fourth Proportional to 420,108.30, 630,159.18 and 104,563.08
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Solution
The fourth proportional to 420,108.30, 630,159.18 and 104,563.08 is: 156,843.81
Step by Step Solution
- Step 1: Write the proportion equation
420,108.30 : 630,159.18 = 104,563.08 : x - Step 2: Convert to fraction form
420,108.30/630,159.18 = 104,563.08/x - Step 3: Cross multiply
420,108.30x = 630,159.18 × 104,563.08 - Step 4: Simplify right side
420,108.30x = 65,891,384,751.07 - Step 5: Solve for x
x = 65,891,384,751.07/420,108.30 - Step 6: Final answer
x = 156,843.81
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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.