Finding the Fourth Proportional to 187,320.76, 280,981.14 and 68,948.44
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Solution
The fourth proportional to 187,320.76, 280,981.14 and 68,948.44 is: 103,422.66
Step by Step Solution
- Step 1: Write the proportion equation
187,320.76 : 280,981.14 = 68,948.44 : x - Step 2: Convert to fraction form
187,320.76/280,981.14 = 68,948.44/x - Step 3: Cross multiply
187,320.76x = 280,981.14 × 68,948.44 - Step 4: Simplify right side
187,320.76x = 19,373,211,272.42 - Step 5: Solve for x
x = 19,373,211,272.42/187,320.76 - Step 6: Final answer
x = 103,422.66
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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.