Finding the Fourth Proportional to 382,199.36, 527,437.12 and 212,449.28
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Solution
The fourth proportional to 382,199.36, 527,437.12 and 212,449.28 is: 293,181.12
Step by Step Solution
- Step 1: Write the proportion equation
382,199.36 : 527,437.12 = 212,449.28 : x - Step 2: Convert to fraction form
382,199.36/527,437.12 = 212,449.28/x - Step 3: Cross multiply
382,199.36x = 527,437.12 × 212,449.28 - Step 4: Simplify right side
382,199.36x = 112,053,636,389.27 - Step 5: Solve for x
x = 112,053,636,389.27/382,199.36 - Step 6: Final answer
x = 293,181.12
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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.