Finding the Fourth Proportional to 287,594.82, 431,447.58 and 129,823.29
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Solution
The fourth proportional to 287,594.82, 431,447.58 and 129,823.29 is: 194,759.92
Step by Step Solution
- Step 1: Write the proportion equation
287,594.82 : 431,447.58 = 129,823.29 : x - Step 2: Convert to fraction form
287,594.82/431,447.58 = 129,823.29/x - Step 3: Cross multiply
287,594.82x = 431,447.58 × 129,823.29 - Step 4: Simplify right side
287,594.82x = 56,011,944,298.14 - Step 5: Solve for x
x = 56,011,944,298.14/287,594.82 - Step 6: Final answer
x = 194,759.92
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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.