Finding the Fourth Proportional to 251,977.83, 347,730.35 and 138,800.31
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Solution
The fourth proportional to 251,977.83, 347,730.35 and 138,800.31 is: 191,544.95
Step by Step Solution
- Step 1: Write the proportion equation
251,977.83 : 347,730.35 = 138,800.31 : x - Step 2: Convert to fraction form
251,977.83/347,730.35 = 138,800.31/x - Step 3: Cross multiply
251,977.83x = 347,730.35 × 138,800.31 - Step 4: Simplify right side
251,977.83x = 48,265,079,682.41 - Step 5: Solve for x
x = 48,265,079,682.41/251,977.83 - Step 6: Final answer
x = 191,544.95
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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.