Finding the Fourth Proportional to 313,400.42, 432,848.67 and 211,249.70
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Solution
The fourth proportional to 313,400.42, 432,848.67 and 211,249.70 is: 291,764.61
Step by Step Solution
- Step 1: Write the proportion equation
313,400.42 : 432,848.67 = 211,249.70 : x - Step 2: Convert to fraction form
313,400.42/432,848.67 = 211,249.70/x - Step 3: Cross multiply
313,400.42x = 432,848.67 × 211,249.70 - Step 4: Simplify right side
313,400.42x = 91,439,151,682.90 - Step 5: Solve for x
x = 91,439,151,682.90/313,400.42 - Step 6: Final answer
x = 291,764.61
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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.