Finding the Fourth Proportional to 313,503.73, 432,663.36 and 177,570.74
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Solution
The fourth proportional to 313,503.73, 432,663.36 and 177,570.74 is: 245,063.60
Step by Step Solution
- Step 1: Write the proportion equation
313,503.73 : 432,663.36 = 177,570.74 : x - Step 2: Convert to fraction form
313,503.73/432,663.36 = 177,570.74/x - Step 3: Cross multiply
313,503.73x = 432,663.36 × 177,570.74 - Step 4: Simplify right side
313,503.73x = 76,828,353,421.85 - Step 5: Solve for x
x = 76,828,353,421.85/313,503.73 - Step 6: Final answer
x = 245,063.60
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1.5x scale
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.