Finding the Fourth Proportional to 383,857.13, 529,719.18 and 211,776.47
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Solution
The fourth proportional to 383,857.13, 529,719.18 and 211,776.47 is: 292,249.52
Step by Step Solution
- Step 1: Write the proportion equation
383,857.13 : 529,719.18 = 211,776.47 : x - Step 2: Convert to fraction form
383,857.13/529,719.18 = 211,776.47/x - Step 3: Cross multiply
383,857.13x = 529,719.18 × 211,776.47 - Step 4: Simplify right side
383,857.13x = 112,182,059,555.05 - Step 5: Solve for x
x = 112,182,059,555.05/383,857.13 - Step 6: Final answer
x = 292,249.52
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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.