Finding the Fourth Proportional to 320,718.12, 480,934.99 and 170,930.49
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Solution
The fourth proportional to 320,718.12, 480,934.99 and 170,930.49 is: 256,319.95
Step by Step Solution
- Step 1: Write the proportion equation
320,718.12 : 480,934.99 = 170,930.49 : x - Step 2: Convert to fraction form
320,718.12/480,934.99 = 170,930.49/x - Step 3: Cross multiply
320,718.12x = 480,934.99 × 170,930.49 - Step 4: Simplify right side
320,718.12x = 82,206,453,498.85 - Step 5: Solve for x
x = 82,206,453,498.85/320,718.12 - Step 6: Final answer
x = 256,319.95
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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.