Finding the Fourth Proportional to 211,252.19, 316,665.05 and 132,421.77
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Solution
The fourth proportional to 211,252.19, 316,665.05 and 132,421.77 is: 198,498.99
Step by Step Solution
- Step 1: Write the proportion equation
211,252.19 : 316,665.05 = 132,421.77 : x - Step 2: Convert to fraction form
211,252.19/316,665.05 = 132,421.77/x - Step 3: Cross multiply
211,252.19x = 316,665.05 × 132,421.77 - Step 4: Simplify right side
211,252.19x = 41,933,345,756.03 - Step 5: Solve for x
x = 41,933,345,756.03/211,252.19 - Step 6: Final answer
x = 198,498.99
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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.