Finding the Fourth Proportional to 313,212.42, 432,236.31 and 169,973.70
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Solution
The fourth proportional to 313,212.42, 432,236.31 and 169,973.70 is: 234,565.43
Step by Step Solution
- Step 1: Write the proportion equation
313,212.42 : 432,236.31 = 169,973.70 : x - Step 2: Convert to fraction form
313,212.42/432,236.31 = 169,973.70/x - Step 3: Cross multiply
313,212.42x = 432,236.31 × 169,973.70 - Step 4: Simplify right side
313,212.42x = 73,468,804,885.05 - Step 5: Solve for x
x = 73,468,804,885.05/313,212.42 - Step 6: Final answer
x = 234,565.43
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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.