Finding the Fourth Proportional to 228,394.84, 315,176.99 and 126,424.75
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Solution
The fourth proportional to 228,394.84, 315,176.99 and 126,424.75 is: 174,461.79
Step by Step Solution
- Step 1: Write the proportion equation
228,394.84 : 315,176.99 = 126,424.75 : x - Step 2: Convert to fraction form
228,394.84/315,176.99 = 126,424.75/x - Step 3: Cross multiply
228,394.84x = 315,176.99 × 126,424.75 - Step 4: Simplify right side
228,394.84x = 39,846,172,166.50 - Step 5: Solve for x
x = 39,846,172,166.50/228,394.84 - Step 6: Final answer
x = 174,461.79
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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.