Finding the Fourth Proportional to 384,713.95, 530,932.74 and 212,628.21
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Solution
The fourth proportional to 384,713.95, 530,932.74 and 212,628.21 is: 293,442.12
Step by Step Solution
- Step 1: Write the proportion equation
384,713.95 : 530,932.74 = 212,628.21 : x - Step 2: Convert to fraction form
384,713.95/530,932.74 = 212,628.21/x - Step 3: Cross multiply
384,713.95x = 530,932.74 × 212,628.21 - Step 4: Simplify right side
384,713.95x = 112,891,277,339.24 - Step 5: Solve for x
x = 112,891,277,339.24/384,713.95 - Step 6: Final answer
x = 293,442.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.