Finding the Fourth Proportional to 313,688.61, 432,888.76 and 177,722.26
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Solution
The fourth proportional to 313,688.61, 432,888.76 and 177,722.26 is: 245,255.86
Step by Step Solution
- Step 1: Write the proportion equation
313,688.61 : 432,888.76 = 177,722.26 : x - Step 2: Convert to fraction form
313,688.61/432,888.76 = 177,722.26/x - Step 3: Cross multiply
313,688.61x = 432,888.76 × 177,722.26 - Step 4: Simplify right side
313,688.61x = 76,933,967,895.73 - Step 5: Solve for x
x = 76,933,967,895.73/313,688.61 - Step 6: Final answer
x = 245,255.86
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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.