Finding the Fourth Proportional to 313,212.16, 432,232.76 and 169,972.20
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Solution
The fourth proportional to 313,212.16, 432,232.76 and 169,972.20 is: 234,561.63
Step by Step Solution
- Step 1: Write the proportion equation
313,212.16 : 432,232.76 = 169,972.20 : x - Step 2: Convert to fraction form
313,212.16/432,232.76 = 169,972.20/x - Step 3: Cross multiply
313,212.16x = 432,232.76 × 169,972.20 - Step 4: Simplify right side
313,212.16x = 73,467,552,279.41 - Step 5: Solve for x
x = 73,467,552,279.41/313,212.16 - Step 6: Final answer
x = 234,561.63
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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.