Finding the Fourth Proportional to 328,254.99, 492,434.95 and 138,717.17
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Solution
The fourth proportional to 328,254.99, 492,434.95 and 138,717.17 is: 208,097.92
Step by Step Solution
- Step 1: Write the proportion equation
328,254.99 : 492,434.95 = 138,717.17 : x - Step 2: Convert to fraction form
328,254.99/492,434.95 = 138,717.17/x - Step 3: Cross multiply
328,254.99x = 492,434.95 × 138,717.17 - Step 4: Simplify right side
328,254.99x = 68,309,180,210.92 - Step 5: Solve for x
x = 68,309,180,210.92/328,254.99 - Step 6: Final answer
x = 208,097.92
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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.