Finding the Fourth Proportional to 313,482.21, 432,737.84 and 211,645.63
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Solution
The fourth proportional to 313,482.21, 432,737.84 and 211,645.63 is: 292,160.35
Step by Step Solution
- Step 1: Write the proportion equation
313,482.21 : 432,737.84 = 211,645.63 : x - Step 2: Convert to fraction form
313,482.21/432,737.84 = 211,645.63/x - Step 3: Cross multiply
313,482.21x = 432,737.84 × 211,645.63 - Step 4: Simplify right side
313,482.21x = 91,587,072,771.64 - Step 5: Solve for x
x = 91,587,072,771.64/313,482.21 - Step 6: Final answer
x = 292,160.35
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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.