Finding the Fourth Proportional to 187,317.18, 280,981.92 and 68,960.84
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Solution
The fourth proportional to 187,317.18, 280,981.92 and 68,960.84 is: 103,443.52
Step by Step Solution
- Step 1: Write the proportion equation
187,317.18 : 280,981.92 = 68,960.84 : x - Step 2: Convert to fraction form
187,317.18/280,981.92 = 68,960.84/x - Step 3: Cross multiply
187,317.18x = 280,981.92 × 68,960.84 - Step 4: Simplify right side
187,317.18x = 19,376,749,228.01 - Step 5: Solve for x
x = 19,376,749,228.01/187,317.18 - Step 6: Final answer
x = 103,443.52
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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.