Finding the Fourth Proportional to 298,611.36, 412,501.61 and 207,921.94
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Solution
The fourth proportional to 298,611.36, 412,501.61 and 207,921.94 is: 287,223.28
Step by Step Solution
- Step 1: Write the proportion equation
298,611.36 : 412,501.61 = 207,921.94 : x - Step 2: Convert to fraction form
298,611.36/412,501.61 = 207,921.94/x - Step 3: Cross multiply
298,611.36x = 412,501.61 × 207,921.94 - Step 4: Simplify right side
298,611.36x = 85,768,134,492.87 - Step 5: Solve for x
x = 85,768,134,492.87/298,611.36 - Step 6: Final answer
x = 287,223.28
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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.