Finding the Fourth Proportional to 470,418.12, 707,026.86 and 221,275.08
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Solution
The fourth proportional to 470,418.12, 707,026.86 and 221,275.08 is: 332,571.00
Step by Step Solution
- Step 1: Write the proportion equation
470,418.12 : 707,026.86 = 221,275.08 : x - Step 2: Convert to fraction form
470,418.12/707,026.86 = 221,275.08/x - Step 3: Cross multiply
470,418.12x = 707,026.86 × 221,275.08 - Step 4: Simplify right side
470,418.12x = 156,447,425,008.65 - Step 5: Solve for x
x = 156,447,425,008.65/470,418.12 - Step 6: Final answer
x = 332,571.00
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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.