Finding the Fourth Proportional to 305,125.71, 457,688.58 and 118,137.21
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Solution
The fourth proportional to 305,125.71, 457,688.58 and 118,137.21 is: 177,205.82
Step by Step Solution
- Step 1: Write the proportion equation
305,125.71 : 457,688.58 = 118,137.21 : x - Step 2: Convert to fraction form
305,125.71/457,688.58 = 118,137.21/x - Step 3: Cross multiply
305,125.71x = 457,688.58 × 118,137.21 - Step 4: Simplify right side
305,125.71x = 54,070,051,890.06 - Step 5: Solve for x
x = 54,070,051,890.06/305,125.71 - Step 6: Final answer
x = 177,205.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.