Finding the Fourth Proportional to 211,428.99, 316,521.41 and 141,133.95
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Solution
The fourth proportional to 211,428.99, 316,521.41 and 141,133.95 is: 211,285.67
Step by Step Solution
- Step 1: Write the proportion equation
211,428.99 : 316,521.41 = 141,133.95 : x - Step 2: Convert to fraction form
211,428.99/316,521.41 = 141,133.95/x - Step 3: Cross multiply
211,428.99x = 316,521.41 × 141,133.95 - Step 4: Simplify right side
211,428.99x = 44,671,916,147.20 - Step 5: Solve for x
x = 44,671,916,147.20/211,428.99 - Step 6: Final answer
x = 211,285.67
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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.