Finding the Fourth Proportional to 382,395.16, 527,708.70 and 212,636.44
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Solution
The fourth proportional to 382,395.16, 527,708.70 and 212,636.44 is: 293,440.17
Step by Step Solution
- Step 1: Write the proportion equation
382,395.16 : 527,708.70 = 212,636.44 : x - Step 2: Convert to fraction form
382,395.16/527,708.70 = 212,636.44/x - Step 3: Cross multiply
382,395.16x = 527,708.70 × 212,636.44 - Step 4: Simplify right side
382,395.16x = 112,210,099,325.03 - Step 5: Solve for x
x = 112,210,099,325.03/382,395.16 - Step 6: Final answer
x = 293,440.17
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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.