Finding the Fourth Proportional to 461,087.74, 636,299.83 and 257,138.88
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Solution
The fourth proportional to 461,087.74, 636,299.83 and 257,138.88 is: 354,850.95
Step by Step Solution
- Step 1: Write the proportion equation
461,087.74 : 636,299.83 = 257,138.88 : x - Step 2: Convert to fraction form
461,087.74/636,299.83 = 257,138.88/x - Step 3: Cross multiply
461,087.74x = 636,299.83 × 257,138.88 - Step 4: Simplify right side
461,087.74x = 163,617,424,632.08 - Step 5: Solve for x
x = 163,617,424,632.08/461,087.74 - Step 6: Final answer
x = 354,850.95
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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.